Remove the husk and silk of the corn. If grilling, preheat the grill. Place the corn directly on the grill and cook for about 3 minutes, then turn the corn to continue cooking other sides. Continue this until all sides are cooked.
While the corn is cooking, prepare the sauce. Add the Mexican Crema, mayonnaise, garlic powder, onion powder, chili powder, salt, lime juice, and chopped cilantro into a small bowl. Stir together until combined.