How long do you cook an ear of corn in the oven wraped in foil?
It is a simple process to bake corn in the ovenPreheat the oven to 425°F (220°C)Remove the husk and silks from the cornRub the ears with a little butter, and salt and pepper them judiciouslyWrap the ears in aluminum foilPlace on a rack in the oven and cook for 20 minutesIf they're big, heavy ears — what people used to call roasting corn — it may take as long as 30 minutes(If there is some chance of melted butter escaping from your aluminum foil and causing your kitchen to fill with smoke, place a jelly-roll pan or some other flat pan with sides on a lower rack in the oven to catch the drips.)