Shuck the corn (meaning clean all the husks and the silks off the cob).
Over medium heat, grill cobs of corn directly on the grill until it gets some dark golden brown areas, about 30 minutes. You’ll also see, what my husband refers to as shrinkle. When some of the kernels start to shrivel and shrink, this means the corn is nice and grilled and sweet.
Remove the corn from the grill. Add a sprinkle of salt and a light smear of butter if desired, but it's so good that you don't need the salt or butter.