Foil packet cooking is cooking food that is wrapped or tented in aluminum foil. The packet can be cooked over campfire coals, on a grill, or in an oven. The foil seals in moisture to help steam and cook your meal or dessert. The best part of foil packet cooking is that once you open your packet, your meal is ready to eat, right out of the foil. It's the perfect minimal mess, quick prep camping meal or dessert option.