Preheat your grill to medium-high heat.
Grill the sweet corn, turning occasionally, until nicely charred on all sides. This should take about 10-15 minutes.
In a mixing bowl, combine sour cream (or Mexican Crema), mayonnaise, minced garlic, chopped cilantro, ground chipotle pepper (or smoked paprika), and lime juice. Mix well to create the creamy sauce.
Once the corn is grilled, brush each cob generously with the creamy sauce mixture, making sure to coat the corn evenly.
Sprinkle crumbled Cotija cheese over the sauced corn, ensuring it sticks to the creamy surface.
Season with salt and pepper to taste.
ptionally, sprinkle extra chopped cilantro and ground chipotle pepper (or smoked paprika) on top for added flavor and presentation.
Serve the Smokin' Mexican Grilled Corn with lime wedges on the side for squeezing over the corn before eating.