how long to cook baked potatoes on open fire
1 Cook over campfire on a grill or place the potatoes in foil over coals beside the fire. 2  Cooking time varies depending on how hot your campfire is burning and the size of potato chunks. 3  Cook until potatoes are tender when poked with a fork. 4  Potatoes cut into large chunks may take 45 minutes to 1 hour to cook.