Shuck the corn to remove the husks and most of the silks. Leave any stalk on the end if possible.
Rub butter heavily over each ear of corn.
Preheat the grill for 5 minutes. Place the corn on the grill over high heat, and do not close the grill. Roast the corn for 3-5 minutes on each side, rotating it a 1/4 turn each time.
Once the corn is roasted on all sides, remove from heat. Rub butter all over each ear once again. Tent with foil until serving.
Notes
This recipe is happily vegetarian and gluten-free.
This recipe can be made in the oven using a broiler. Keep a close eye on the corn as it can overcook rather quickly this way.