1/2CupCrumbled Cotija Cheese, Parmesan, or Ricotta
1Lime, cut into 8 wedges
Build a medium-hot fire in a charcoal grill or heat a gas grill to high. Brush grill grate with oil. Combine chile powder and cayenne in a small bowl.
Grill corn, turning occasionally with tongs, until cooked through and lightly charred, about 10 minutes. Remove from grill and immediately brush each ear with 1½ tsp. mayonnaise. Sprinkle each with 1 Tbsp. cheese and a pinch of chile powder mixture. Squeeze 1 lime wedge over each ear and serve.