• Preheat oven to 400 degrees Fahrenheit or fire up the grill to medium heat.

Prep the spicy butter

• In a mixing bowl, combine the butter, cayenne pepper powder, cumin, salt, pepper, lime juice (optional), and chopped cilantro (optional). Stir well.

Prep the corn

• Tear off the husks and remove the corn silk from the ears.
• Cut six pieces of aluminum foil that are large enough to thoroughly wrap each ear.
• Place an ear of corn on a piece of aluminum foil, then slather the corn with the spicy butter, coating all sides.
• Wrap the ear of corn in the aluminum foil tightly.
• Repeat for the remaining ears of corn.

Cook the corn: Oven

• Put the aluminum foil wrapped corn ears on a baking sheet, then bake at 400 degrees Fahrenheit for approximately 30 minutes.
• Once baked, remove from heat and allow the corn to rest for 5 minutes to slightly cool.
• Remove the tinfoil from each ear and serve.

Cook the corn: Grill

• Place the aluminum foil wrapped corn on the grill and cook for 20 to 25 minutes, rotating often.
• Remove from grill and allow the corn to rest for 5 minutes to slightly cool before serving.