how long do you bake corn on the cob
1 Preheat oven to 450 degrees. 2  Remove husks and silks from corn. 3  Butter corn and wrap in foil. 4  Place on cookie sheet and roast for 20 to 25 minutes.imple Oven-Roasted Corn on the Cob. 4 5. I'd recommend keeping them in the oven for at least 35-40 minutes. Open the foil wrap after 20 mins so they catch a little tan) I buttered them in olive oil and garlic salt. Worked out GREAT.