Cheesy Campfire Potatoes

6 potatoes, sliced

¼ cup diced onion

2 tablespoons cold margarine

¼ cup grated Parmesan cheese

¾ cup shredded mozzarella cheese

¾ cup shredded Cheddar cheese

salt and ground black pepper to taste

Build a campfire and allow the fire to burn until it has accumulated a bed of coals. Rake the coals into a flat bed on one side of the fire.

Cut 2 lengths of heavy duty foil approximately 18 inches square, placing one on top of the other for strength. Spray top one with non-stick spray. Spread potatoes on foil leaving plenty of room to fold up later. Scatter the onion over potatoes; slice the margarine over the potatoes; layer the Parmesan, mozzarella, and Cheddar cheeses over the potatoes; season with salt and pepper. Bring opposite edges of foil together and seal.

Place the packet directly onto your campfire and cook until the potatoes are soft, about 35 minutes.