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Funfetti Sugar Cookie Bars Flavorful Sweet Treats

by on March 19, 2025

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Are you ready to delight your taste buds? Funfetti Sugar Cookie Bars are a colorful twist on classic cookie recipes. With just a few simple ingredients, you can create soft, chewy bars that burst with flavor. Whether you’re baking for a party or a cozy night in, these treats are sure to impress. Let’s dive into this fun baking adventure together!

To make funfetti sugar cookie bars, you need some simple ingredients. Each one plays a key role in creating the perfect treat. Here’s the list of what you’ll need: - 2 ½ cups all-purpose flour - 1 teaspoon baking powder - ½ teaspoon baking soda - ½ teaspoon salt - ¾ cup unsalted butter, softened to room temperature - 1 cup granulated sugar - ½ cup brown sugar, packed tightly - 2 large eggs, at room temperature - 2 teaspoons pure vanilla extract - ½ cup rainbow sprinkles (plus extra for topping) - 1 cup royal icing or cream cheese frosting (optional for topping) Each ingredient adds flavor, texture, and fun. The flour gives the bars structure. Baking powder and baking soda help them rise. Salt enhances the sweetness. Butter creates a rich taste and soft texture. The sugars add sweetness and moisture. Eggs bind everything together. Vanilla adds a warm flavor. Rainbow sprinkles bring joy and color. Frosting is optional but makes your bars extra special! {{ingredient_image_2}} - Preheat oven to 350°F (175°C). - Prepare the baking pan with parchment paper. Start by preheating your oven. This ensures even baking. Next, grab a 9x13 inch baking pan. Line it with parchment paper. Leave some paper hanging over the sides. This will help you lift the bars out later. - Combine flour, baking powder, baking soda, and salt. In a medium bowl, mix all-purpose flour, baking powder, baking soda, and salt. Use a whisk to blend everything well. Set this bowl aside while you work on the wet ingredients. - Beat butter and sugars until light and fluffy. In a larger bowl, take softened unsalted butter. Add granulated sugar and brown sugar. Use a hand mixer to beat this mixture until it’s light and fluffy. This step takes about 2-3 minutes. The fluffiness makes your bars soft and chewy. - Add eggs one at a time. - Mix in vanilla extract. Now, crack the eggs into the butter-sugar mix. Add them one at a time. Make sure each egg is mixed in well before adding the next. Then, pour in the pure vanilla extract. This adds a lovely flavor to your bars. - Gradually mix dry ingredients into wet. Take the bowl with your dry ingredients. Gradually mix it into the wet ingredients. Do this at low speed with your mixer. Stop mixing when everything is just combined. Overmixing can make your bars tough. - Fold in rainbow sprinkles. - Pour batter into prepared pan. Now for the fun part! Carefully fold in the rainbow sprinkles. Use a spatula or wooden spoon to mix them in evenly. Then, pour the batter into your lined baking pan. Use a spatula to spread it out evenly. - Bake and check for doneness. - Cool on wire rack. Bake the cookie bars in your preheated oven. Check them after about 20 minutes. They should be lightly golden on the edges. Insert a toothpick into the center. If it comes out clean, they are done! Remove them from the oven and let them cool for about 10 minutes in the pan. Then, lift them out using the parchment paper and let them cool completely on a wire rack. - Apply frosting and extra sprinkles. - Cut into bars for serving. Once the bars are cool, it’s time to frost. Spread royal icing or cream cheese frosting on top. For extra fun, add more rainbow sprinkles on the frosting. Finally, use a sharp knife to cut the bars into squares or rectangles. Enjoy your sweet treats! For the best cookie bars, start with mixing the butter and sugars well. Use a hand mixer or stand mixer to beat them until fluffy. This step adds air, making the bars soft and chewy. When adding the eggs, do it one at a time. This helps mix well. Avoid overmixing once you add the dry ingredients. Mix just until everything is combined. This keeps your bars from being tough. If you see any flour pockets, gently fold the batter with a spatula. To kick up the flavor, you can add a splash of almond extract. It gives a sweet, nutty flavor that pairs well with the cookie. You can also try adding lemon zest for a bright twist. Both options bring a fun change to the classic funfetti taste. For serving, arrange the cookie bars on a colorful platter. Stack them slightly to create a fun display. This adds height and makes them eye-catching. Don’t forget to sprinkle extra rainbow sprinkles on top. It adds a joyful touch that everyone loves. Pro Tips Butter Temperature: Ensure your butter is softened to room temperature for optimal creaming with the sugars, which will help achieve that light and fluffy texture. Don’t Overmix: When combining the dry ingredients with the wet, mix just until incorporated. Overmixing can lead to tough cookie bars. Cooling Time: Allow the cookie bars to cool completely before frosting. This prevents the frosting from melting and ensures a beautiful finish. Sprinkle Management: For an extra pop of color, reserve some sprinkles to add on top after frosting. This keeps them vibrant and prevents them from bleeding into the batter. {{image_4}} You can easily change the flavor of your Funfetti sugar cookie bars. Adding lemon zest gives a bright, fresh taste. Just a teaspoon will do! If you prefer a nutty flavor, try almond extract instead of vanilla. It adds a lovely twist. You can also play with the sprinkles. Use chocolate or seasonal sprinkles for fun themes. Frosting can make your cookie bars even more special. Instead of royal icing or cream cheese, try chocolate ganache. It’s rich and smooth, perfect for chocolate lovers. Whipped cream is another great choice. It’s light and airy, adding a nice touch. You can also serve them plain for a simpler treat. If you need gluten-free options, use a gluten-free flour blend. This works well without changing the taste much. For a vegan version, swap eggs for flax eggs. Use plant-based butter and dairy-free frosting. These changes keep the fun while meeting your dietary needs. You can store your Funfetti sugar cookie bars in two ways: at room temperature or in the fridge. - Room Temperature: Keep them in an airtight container. This works well if you plan to eat them in a few days. - Refrigerator: Place them in the fridge if you want them to last longer. The cold keeps them fresh, but they may get a bit firmer. Freezing cookie bars is easy. Here’s how: 1. Cool Completely: Let the bars cool down fully after baking. 2. Cut Bars: Slice the bars into squares or rectangles. 3. Wrap: Wrap each piece in plastic wrap tightly. 4. Place in Bag: Put the wrapped bars in a freezer bag. Try to remove as much air as you can. 5. Label: Mark the date on the bag for reference. 6. Freeze: Store them in the freezer for up to three months. Thawing: To thaw, take out the bars and leave them at room temperature for about 30 minutes. You can also heat them in the microwave for a few seconds. When stored properly, the cookie bars can last: - At Room Temperature: About 4-5 days. - In the Refrigerator: Up to a week. - In the Freezer: Up to three months. Enjoy the sweet treats whenever you want! Yes, you can make these cookie bars ahead of time. Bake them and let them cool completely. Then, wrap them tightly in plastic wrap or store them in an airtight container. They will stay fresh for up to three days at room temperature. You can also freeze them for longer storage. You can tell the cookie bars are done when the edges turn lightly golden. Insert a toothpick in the center; if it comes out clean, they are ready. Make sure not to overbake them, or they may become dry. If you don't have rainbow sprinkles, you can use mini chocolate chips or chopped nuts. You can also use themed sprinkles for holidays or special events. The key is to keep the fun and color in your cookie bars. Yes, you can use a different size pan. If you use a smaller pan, the bars may take longer to bake. If you use a larger pan, they may bake faster. Keep an eye on them while they bake. If your cookie bars are crumbly, you may have overmixed the batter or used too much flour. To fix this, try adding a little melted butter to the mixture. This will help bind the ingredients together better. You now have all the steps to make delicious cookie bars. Remember the key ingredients: flour, sugar, eggs, and sprinkles. The process is simple, from mixing to baking. Experiment with flavors and toppings to make it your own. Store them right to keep your treats fresh. With these tips, you’ll bake perfect cookie bars every time. So gather your ingredients, and start baking today!

Why I Love This Recipe

  1. Fun and Festive: These Funfetti Sugar Cookie Bars are perfect for celebrations, bringing a burst of color and joy to any occasion.
  2. Easy to Make: With simple ingredients and straightforward steps, even novice bakers can whip these up with ease.
  3. Deliciously Soft: The bars are chewy and soft, making them an irresistible treat that everyone will love.
  4. Customizable Toppings: Whether you prefer royal icing or cream cheese frosting, you can tailor the bars to your taste!

Ingredients

To make funfetti sugar cookie bars, you need some simple ingredients. Each one plays a key role in creating the perfect treat. Here’s the list of what you’ll need:

– 2 ½ cups all-purpose flour

– 1 teaspoon baking powder

– ½ teaspoon baking soda

– ½ teaspoon salt

– ¾ cup unsalted butter, softened to room temperature

– 1 cup granulated sugar

– ½ cup brown sugar, packed tightly

– 2 large eggs, at room temperature

– 2 teaspoons pure vanilla extract

– ½ cup rainbow sprinkles (plus extra for topping)

– 1 cup royal icing or cream cheese frosting (optional for topping)

Each ingredient adds flavor, texture, and fun. The flour gives the bars structure. Baking powder and baking soda help them rise. Salt enhances the sweetness. Butter creates a rich taste and soft texture. The sugars add sweetness and moisture. Eggs bind everything together. Vanilla adds a warm flavor. Rainbow sprinkles bring joy and color. Frosting is optional but makes your bars extra special!

Step-by-Step Instructions

Prepping Your Oven and Pan

– Preheat oven to 350°F (175°C).

– Prepare the baking pan with parchment paper.

Start by preheating your oven. This ensures even baking. Next, grab a 9×13 inch baking pan. Line it with parchment paper. Leave some paper hanging over the sides. This will help you lift the bars out later.

Mixing Dry Ingredients

– Combine flour, baking powder, baking soda, and salt.

In a medium bowl, mix all-purpose flour, baking powder, baking soda, and salt. Use a whisk to blend everything well. Set this bowl aside while you work on the wet ingredients.

Creaming Butter and Sugars

– Beat butter and sugars until light and fluffy.

In a larger bowl, take softened unsalted butter. Add granulated sugar and brown sugar. Use a hand mixer to beat this mixture until it’s light and fluffy. This step takes about 2-3 minutes. The fluffiness makes your bars soft and chewy.

Incorporating Eggs and Vanilla

– Add eggs one at a time.

– Mix in vanilla extract.

Now, crack the eggs into the butter-sugar mix. Add them one at a time. Make sure each egg is mixed in well before adding the next. Then, pour in the pure vanilla extract. This adds a lovely flavor to your bars.

Combining Wet and Dry Ingredients

– Gradually mix dry ingredients into wet.

Take the bowl with your dry ingredients. Gradually mix it into the wet ingredients. Do this at low speed with your mixer. Stop mixing when everything is just combined. Overmixing can make your bars tough.

Finalizing the Batter

– Fold in rainbow sprinkles.

– Pour batter into prepared pan.

Now for the fun part! Carefully fold in the rainbow sprinkles. Use a spatula or wooden spoon to mix them in evenly. Then, pour the batter into your lined baking pan. Use a spatula to spread it out evenly.

Baking and Cooling

– Bake and check for doneness.

– Cool on wire rack.

Bake the cookie bars in your preheated oven. Check them after about 20 minutes. They should be lightly golden on the edges. Insert a toothpick into the center. If it comes out clean, they are done! Remove them from the oven and let them cool for about 10 minutes in the pan. Then, lift them out using the parchment paper and let them cool completely on a wire rack.

Frosting and Serving

– Apply frosting and extra sprinkles.

– Cut into bars for serving.

Once the bars are cool, it’s time to frost. Spread royal icing or cream cheese frosting on top. For extra fun, add more rainbow sprinkles on the frosting. Finally, use a sharp knife to cut the bars into squares or rectangles. Enjoy your sweet treats!

Tips & Tricks

Achieving Perfect Cookie Bars

For the best cookie bars, start with mixing the butter and sugars well. Use a hand mixer or stand mixer to beat them until fluffy. This step adds air, making the bars soft and chewy. When adding the eggs, do it one at a time. This helps mix well.

Avoid overmixing once you add the dry ingredients. Mix just until everything is combined. This keeps your bars from being tough. If you see any flour pockets, gently fold the batter with a spatula.

Enhancing the Flavor

To kick up the flavor, you can add a splash of almond extract. It gives a sweet, nutty flavor that pairs well with the cookie. You can also try adding lemon zest for a bright twist. Both options bring a fun change to the classic funfetti taste.

Presentation Tips

For serving, arrange the cookie bars on a colorful platter. Stack them slightly to create a fun display. This adds height and makes them eye-catching. Don’t forget to sprinkle extra rainbow sprinkles on top. It adds a joyful touch that everyone loves.

Pro Tips

  1. Butter Temperature: Ensure your butter is softened to room temperature for optimal creaming with the sugars, which will help achieve that light and fluffy texture.
  2. Don’t Overmix: When combining the dry ingredients with the wet, mix just until incorporated. Overmixing can lead to tough cookie bars.
  3. Cooling Time: Allow the cookie bars to cool completely before frosting. This prevents the frosting from melting and ensures a beautiful finish.
  4. Sprinkle Management: For an extra pop of color, reserve some sprinkles to add on top after frosting. This keeps them vibrant and prevents them from bleeding into the batter.

Variations

Flavor Variations

You can easily change the flavor of your Funfetti sugar cookie bars. Adding lemon zest gives a bright, fresh taste. Just a teaspoon will do! If you prefer a nutty flavor, try almond extract instead of vanilla. It adds a lovely twist. You can also play with the sprinkles. Use chocolate or seasonal sprinkles for fun themes.

Frosting Options

Frosting can make your cookie bars even more special. Instead of royal icing or cream cheese, try chocolate ganache. It’s rich and smooth, perfect for chocolate lovers. Whipped cream is another great choice. It’s light and airy, adding a nice touch. You can also serve them plain for a simpler treat.

Dietary Adjustments

If you need gluten-free options, use a gluten-free flour blend. This works well without changing the taste much. For a vegan version, swap eggs for flax eggs. Use plant-based butter and dairy-free frosting. These changes keep the fun while meeting your dietary needs.

Storage Info

How to Store Cookie Bars

You can store your Funfetti sugar cookie bars in two ways: at room temperature or in the fridge.

– Room Temperature: Keep them in an airtight container. This works well if you plan to eat them in a few days.

– Refrigerator: Place them in the fridge if you want them to last longer. The cold keeps them fresh, but they may get a bit firmer.

Freezing Instructions

Freezing cookie bars is easy. Here’s how:

1. Cool Completely: Let the bars cool down fully after baking.

2. Cut Bars: Slice the bars into squares or rectangles.

3. Wrap: Wrap each piece in plastic wrap tightly.

4. Place in Bag: Put the wrapped bars in a freezer bag. Try to remove as much air as you can.

5. Label: Mark the date on the bag for reference.

6. Freeze: Store them in the freezer for up to three months.

Thawing: To thaw, take out the bars and leave them at room temperature for about 30 minutes. You can also heat them in the microwave for a few seconds.

Shelf Life

When stored properly, the cookie bars can last:

– At Room Temperature: About 4-5 days.

– In the Refrigerator: Up to a week.

– In the Freezer: Up to three months.

Enjoy the sweet treats whenever you want!

FAQs

Can I make these cookie bars ahead of time?

Yes, you can make these cookie bars ahead of time. Bake them and let them cool completely. Then, wrap them tightly in plastic wrap or store them in an airtight container. They will stay fresh for up to three days at room temperature. You can also freeze them for longer storage.

How can I tell when the cookie bars are done baking?

You can tell the cookie bars are done when the edges turn lightly golden. Insert a toothpick in the center; if it comes out clean, they are ready. Make sure not to overbake them, or they may become dry.

What can I substitute for rainbow sprinkles?

If you don’t have rainbow sprinkles, you can use mini chocolate chips or chopped nuts. You can also use themed sprinkles for holidays or special events. The key is to keep the fun and color in your cookie bars.

Can I use a different baking pan size?

Yes, you can use a different size pan. If you use a smaller pan, the bars may take longer to bake. If you use a larger pan, they may bake faster. Keep an eye on them while they bake.

How do I fix crumbly cookie bars?

If your cookie bars are crumbly, you may have overmixed the batter or used too much flour. To fix this, try adding a little melted butter to the mixture. This will help bind the ingredients together better.

You now have all the steps to make delicious cookie bars. Remember the key ingredients: flour, sugar, eggs, and sprinkles. The process is simple, from mixing to baking.

Experiment with flavors and toppings to make it your own. Store them right to keep your treats fresh. With these tips, you’ll bake perfect cookie bars every time. So gather your ingredients, and start baking toda

To make funfetti sugar cookie bars, you need some simple ingredients. Each one plays a key role in creating the perfect treat. Here’s the list of what you’ll need: - 2 ½ cups all-purpose flour - 1 teaspoon baking powder - ½ teaspoon baking soda - ½ teaspoon salt - ¾ cup unsalted butter, softened to room temperature - 1 cup granulated sugar - ½ cup brown sugar, packed tightly - 2 large eggs, at room temperature - 2 teaspoons pure vanilla extract - ½ cup rainbow sprinkles (plus extra for topping) - 1 cup royal icing or cream cheese frosting (optional for topping) Each ingredient adds flavor, texture, and fun. The flour gives the bars structure. Baking powder and baking soda help them rise. Salt enhances the sweetness. Butter creates a rich taste and soft texture. The sugars add sweetness and moisture. Eggs bind everything together. Vanilla adds a warm flavor. Rainbow sprinkles bring joy and color. Frosting is optional but makes your bars extra special! {{ingredient_image_2}} - Preheat oven to 350°F (175°C). - Prepare the baking pan with parchment paper. Start by preheating your oven. This ensures even baking. Next, grab a 9x13 inch baking pan. Line it with parchment paper. Leave some paper hanging over the sides. This will help you lift the bars out later. - Combine flour, baking powder, baking soda, and salt. In a medium bowl, mix all-purpose flour, baking powder, baking soda, and salt. Use a whisk to blend everything well. Set this bowl aside while you work on the wet ingredients. - Beat butter and sugars until light and fluffy. In a larger bowl, take softened unsalted butter. Add granulated sugar and brown sugar. Use a hand mixer to beat this mixture until it’s light and fluffy. This step takes about 2-3 minutes. The fluffiness makes your bars soft and chewy. - Add eggs one at a time. - Mix in vanilla extract. Now, crack the eggs into the butter-sugar mix. Add them one at a time. Make sure each egg is mixed in well before adding the next. Then, pour in the pure vanilla extract. This adds a lovely flavor to your bars. - Gradually mix dry ingredients into wet. Take the bowl with your dry ingredients. Gradually mix it into the wet ingredients. Do this at low speed with your mixer. Stop mixing when everything is just combined. Overmixing can make your bars tough. - Fold in rainbow sprinkles. - Pour batter into prepared pan. Now for the fun part! Carefully fold in the rainbow sprinkles. Use a spatula or wooden spoon to mix them in evenly. Then, pour the batter into your lined baking pan. Use a spatula to spread it out evenly. - Bake and check for doneness. - Cool on wire rack. Bake the cookie bars in your preheated oven. Check them after about 20 minutes. They should be lightly golden on the edges. Insert a toothpick into the center. If it comes out clean, they are done! Remove them from the oven and let them cool for about 10 minutes in the pan. Then, lift them out using the parchment paper and let them cool completely on a wire rack. - Apply frosting and extra sprinkles. - Cut into bars for serving. Once the bars are cool, it’s time to frost. Spread royal icing or cream cheese frosting on top. For extra fun, add more rainbow sprinkles on the frosting. Finally, use a sharp knife to cut the bars into squares or rectangles. Enjoy your sweet treats! For the best cookie bars, start with mixing the butter and sugars well. Use a hand mixer or stand mixer to beat them until fluffy. This step adds air, making the bars soft and chewy. When adding the eggs, do it one at a time. This helps mix well. Avoid overmixing once you add the dry ingredients. Mix just until everything is combined. This keeps your bars from being tough. If you see any flour pockets, gently fold the batter with a spatula. To kick up the flavor, you can add a splash of almond extract. It gives a sweet, nutty flavor that pairs well with the cookie. You can also try adding lemon zest for a bright twist. Both options bring a fun change to the classic funfetti taste. For serving, arrange the cookie bars on a colorful platter. Stack them slightly to create a fun display. This adds height and makes them eye-catching. Don’t forget to sprinkle extra rainbow sprinkles on top. It adds a joyful touch that everyone loves. Pro Tips Butter Temperature: Ensure your butter is softened to room temperature for optimal creaming with the sugars, which will help achieve that light and fluffy texture. Don’t Overmix: When combining the dry ingredients with the wet, mix just until incorporated. Overmixing can lead to tough cookie bars. Cooling Time: Allow the cookie bars to cool completely before frosting. This prevents the frosting from melting and ensures a beautiful finish. Sprinkle Management: For an extra pop of color, reserve some sprinkles to add on top after frosting. This keeps them vibrant and prevents them from bleeding into the batter. {{image_4}} You can easily change the flavor of your Funfetti sugar cookie bars. Adding lemon zest gives a bright, fresh taste. Just a teaspoon will do! If you prefer a nutty flavor, try almond extract instead of vanilla. It adds a lovely twist. You can also play with the sprinkles. Use chocolate or seasonal sprinkles for fun themes. Frosting can make your cookie bars even more special. Instead of royal icing or cream cheese, try chocolate ganache. It’s rich and smooth, perfect for chocolate lovers. Whipped cream is another great choice. It’s light and airy, adding a nice touch. You can also serve them plain for a simpler treat. If you need gluten-free options, use a gluten-free flour blend. This works well without changing the taste much. For a vegan version, swap eggs for flax eggs. Use plant-based butter and dairy-free frosting. These changes keep the fun while meeting your dietary needs. You can store your Funfetti sugar cookie bars in two ways: at room temperature or in the fridge. - Room Temperature: Keep them in an airtight container. This works well if you plan to eat them in a few days. - Refrigerator: Place them in the fridge if you want them to last longer. The cold keeps them fresh, but they may get a bit firmer. Freezing cookie bars is easy. Here’s how: 1. Cool Completely: Let the bars cool down fully after baking. 2. Cut Bars: Slice the bars into squares or rectangles. 3. Wrap: Wrap each piece in plastic wrap tightly. 4. Place in Bag: Put the wrapped bars in a freezer bag. Try to remove as much air as you can. 5. Label: Mark the date on the bag for reference. 6. Freeze: Store them in the freezer for up to three months. Thawing: To thaw, take out the bars and leave them at room temperature for about 30 minutes. You can also heat them in the microwave for a few seconds. When stored properly, the cookie bars can last: - At Room Temperature: About 4-5 days. - In the Refrigerator: Up to a week. - In the Freezer: Up to three months. Enjoy the sweet treats whenever you want! Yes, you can make these cookie bars ahead of time. Bake them and let them cool completely. Then, wrap them tightly in plastic wrap or store them in an airtight container. They will stay fresh for up to three days at room temperature. You can also freeze them for longer storage. You can tell the cookie bars are done when the edges turn lightly golden. Insert a toothpick in the center; if it comes out clean, they are ready. Make sure not to overbake them, or they may become dry. If you don't have rainbow sprinkles, you can use mini chocolate chips or chopped nuts. You can also use themed sprinkles for holidays or special events. The key is to keep the fun and color in your cookie bars. Yes, you can use a different size pan. If you use a smaller pan, the bars may take longer to bake. If you use a larger pan, they may bake faster. Keep an eye on them while they bake. If your cookie bars are crumbly, you may have overmixed the batter or used too much flour. To fix this, try adding a little melted butter to the mixture. This will help bind the ingredients together better. You now have all the steps to make delicious cookie bars. Remember the key ingredients: flour, sugar, eggs, and sprinkles. The process is simple, from mixing to baking. Experiment with flavors and toppings to make it your own. Store them right to keep your treats fresh. With these tips, you’ll bake perfect cookie bars every time. So gather your ingredients, and start baking today!

Funfetti Sugar Cookie Bars

Delicious and colorful sugar cookie bars filled with rainbow sprinkles, perfect for celebrations.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 45 minutes
Course Dessert
Cuisine American
Servings 12
Calories 200 kcal

Ingredients
  

  • 2.5 cups all-purpose flour
  • 1 teaspoon baking powder
  • 0.5 teaspoon baking soda
  • 0.5 teaspoon salt
  • 0.75 cup unsalted butter, softened to room temperature
  • 1 cup granulated sugar
  • 0.5 cup brown sugar, packed tightly
  • 2 large eggs, at room temperature
  • 2 teaspoons pure vanilla extract
  • 0.5 cup rainbow sprinkles (plus extra for topping)
  • 1 cup royal icing or cream cheese frosting (optional for topping)

Instructions
 

  • Preheat your oven to 350°F (175°C). Prepare a 9x13 inch baking pan by lining it with parchment paper, allowing some excess paper on the sides for easy lifting later.
  • In a medium bowl, combine the all-purpose flour, baking powder, baking soda, and salt. Whisk together until well blended, then set aside.
  • In a large mixing bowl, use a hand mixer or stand mixer to beat the softened butter together with the granulated sugar and brown sugar. Mix on medium speed for about 2-3 minutes, until the mixture appears light and fluffy.
  • Add the eggs to the butter-sugar mixture one at a time, ensuring each egg is fully incorporated before adding the next. Then, mix in the vanilla extract until combined.
  • Gradually mix in the dry ingredients from your medium bowl into the wet ingredients, using low speed on your mixer. Mix only until the ingredients are just combined—do not overmix.
  • Carefully fold in the rainbow sprinkles using a spatula or wooden spoon, ensuring they are evenly distributed throughout the batter for that festive pop of color.
  • Pour the batter into your prepared baking pan. Use a spatula to spread it evenly across the surface, smoothing out the top as much as possible.
  • Bake in the preheated oven for approximately 20-25 minutes. The cookie bars are done when the edges are lightly golden and a toothpick inserted into the center comes out clean.
  • Once baked, remove the pan from the oven and let the cookie bars cool in the pan on a wire rack for about 10 minutes. After that, carefully lift the bars out using the parchment paper overhang and allow them to cool completely on the rack.
  • After the bars have cooled completely, if desired, spread your choice of royal icing or cream cheese frosting over the surface. Sprinkle extra rainbow sprinkles on top for a delightful finishing touch.
  • Finally, use a sharp knife to cut the cooled and frosted cookie bars into squares or rectangles for serving.

Notes

For a festive touch, serve on a colorful platter and garnish with extra sprinkles.
Keyword cookie bars, dessert, funfetti, sprinkles

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