Melt 4 tablespoons butter in a microwave-safe dish. Add in 1 teaspoon garlic powder, 1 teaspoon black pepper, and 1 teaspoon sea salt. Mix until fully combined.
Place 4 corn on the cob on a long sheet of aluminum foil. The foil needs to be long enough to fully wrap the corn, so make sure it’s a nice, long piece. Slather the corn with your garlic butter sauce. Give it a nice coating!
Fold one half of the foil over the corn.
Tuck it in, then fold in the other half.
Finish the foil pack by tucking in both the top and bottom end nice and snug.
Add the foil pack of corn on the cob to your grill over medium-low heat. Grill for 30 minutes.
Carefully unwrap from the foil and serve. Perfect for serving as-is or making Mexican Street Corn Dip and Elotes Mexicanos!