In a mixing bowl, pour in the warm milk and add the granulated sugar. Stir gently until the sugar is fully dissolved and the mixture is smooth. Then, sprinkle the instant yeast on top and allow it to sit undisturbed for about 5 minutes, or until it becomes frothy and bubbly.
In a separate large mixing bowl, combine the all-purpose flour and salt using a whisk to ensure an even distribution. Create a well in the center of the dry ingredients.
Pour the bubbly yeast mixture into the well, followed by the melted butter and the beaten egg. Use a spatula or wooden spoon to mix the ingredients together until a shaggy dough begins to form.
Lightly flour a clean surface and transfer the dough onto it. Knead the dough for approximately 10 minutes, adding more flour as necessary, until it becomes smooth and elastic to the touch.
Grease a bowl with a small amount of oil or cooking spray, then place the kneaded dough inside. Cover the bowl with a clean kitchen towel and let it rise in a warm environment for about 1 hour, or until the dough has doubled in size.
Once the dough has risen, gently punch it down to release any trapped air. Flatten the dough into a rectangle and carefully roll it up tightly from one end to form a loaf shape.
Place your shaped loaf seam-side down in a greased 9x5-inch loaf pan. Cover it again and let it rise for an additional 30-45 minutes or until the top of the dough has visibly puffed up.
Meanwhile, preheat your oven to 350°F (175°C). Just before baking, brush the top of the loaf with a bit of extra milk to encourage a lovely golden crust.
Bake in the preheated oven for 25-30 minutes, or until the bread is beautifully golden brown and sounds hollow when tapped on the bottom.
Once it's done, carefully remove the loaf from the oven and let it cool in the pan for about 10 minutes. Afterward, transfer the bread to a wire rack to cool completely before slicing.
Notes
Slice the bread into even pieces and serve warm with a generous pat of butter or your favorite jam. For a charming rustic display, wrap the bread in a lovely kitchen cloth when serving at the table.