You don't need an oven to make a perfectly cooked baked potato. An open flame like you would find at a campfire provides the necessary heat to bake a potato. Learning how to cook a potato in a campfire opens up your camping menu to go beyond the basic stick-roasted hot dogs with a side of chips or pasta salad. The key to an evenly baked open-flame potato is keeping a close eye on the cooking progress of the potato.
Clean the potato by washing and scrubbing it under cold water. Use a vegetable brush to get the dirt that doesn't wash away easily on its own. Dry the potatoes gently with a clean towel.
Stab the potato on all sides with a fork to create a series of holes in the skin. These holes help create an even cooking process and prevent a potato explosion by helping the steam escape.
Spread a thin layer of butter on the skin of the potato. Sprinkle it with salt if desired.
Layer two pieces of aluminum foil to create a durable cooking pouch for your potato. Wrap the potato tightly inside the two layers of foil.
Bury the wrapped potato in hot coals, or place it on a hot rock near the flames so the edge of the fire reaches it. Another option is to cook the potatoes on a wire rack hanging above the flames.
Bake the potato on the flame for about 30 to 35 minutes. Carefully remove the potato from the fire, using oven mitts. Unwrap the foil and press a fork into the potato to see if it is done.