Preheat a grill to medium-high.
Combine mayonnaise and lime juice in a small bowl. Season, to taste, with salt and cayenne pepper.
Grill the corn until it is golden brown, turning often and brushing with butter after each turn. Once the corn is cooked to your liking, brush with the mayonnaise mixture and serve.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.