First, you'll want to soak the corn in water with the husks on, ( trimmed on the ends. ). For about 30 min. This will prevent the husk from catching fire while in the BBQ. Next place them on a preheated grill of 375-400 degrees. I like mine crisp so I only cook them for 15 min. If you prefer it less crisp leave it on for 30 min. Roll them all so often, this lets it cook evenly.