Begin by preheating your oven to 350°F (175°C).

In a large mixing bowl, combine 1 cup of mayonnaise, 1 cup of sour cream, ½ cup of chopped cilantro, and 2 cloves of minced garlic. Stir these ingredients vigorously.

Add 1 teaspoon of chili powder, ½ teaspoon of cayenne pepper, and the 6 cups of cooked corn kernels to the mixture. Fold these ingredients together gently.

Sprinkle in ½ cup of crumbled Cotija cheese and ½ cup of grated Parmesan cheese, and stir everything together.

Taste the mixture and season with salt and pepper.

Squeeze the juice of one lime into the bowl and stir until all ingredients are well-combined.

Transfer the mixture into a baking dish, smoothing the top.

Bake the dip for 25-30 minutes, or until the top is golden and bubbling.

After baking, remove the dip and allow it to cool for a few minutes before serving.