Grill fresh ears of corn over medium heat for about 10-12 minutes, turning occasionally until all sides are slightly charred and fragrant. Once grilled, allow the corn to cool, then carefully cut the kernels off the cob. If using frozen corn, simply thaw it and set aside.
In a large mixing bowl, combine the softened cream cheese, sour cream, and mayonnaise. Using an electric mixer or a whisk, blend the ingredients until smooth and creamy, ensuring there are no lumps.
Add the corn kernels to the cream cheese mixture. Next, incorporate the crumbled cotija cheese, freshly squeezed lime juice, chili powder, smoked paprika, and ground cumin. Gently stir the mixture until all components are thoroughly combined.
Taste the dip and add salt and pepper as needed to enhance the flavor. Adjust seasoning according to your preference.
Transfer the dip mixture to a serving dish. Cover and refrigerate for at least 30 minutes to 1 hour, allowing the flavors to meld beautifully.
Before serving, if desired, sprinkle the dip with chopped cilantro for an added burst of freshness. Serve alongside a generous bowl of tortilla chips for dipping.
Notes
For an eye-catching presentation, garnish with additional corn kernels and cilantro.