Ingredients
Equipment
Method
Build the foil packet
- Layer the potato and onion slices on a large double-layer of heavy-duty aluminum foil, keeping the slices in an even layer. The visual cue is a flat, layered stack with onions distributed throughout.
- Dot the top with butter cubes and season with garlic powder, paprika, salt, and pepper. The visual cue is even speckles of seasoning and visible butter pieces across the surface.
- Fold the foil into a sealed packet, crimping edges so steam stays inside. The visual cue is a tight, fully enclosed packet with no gaps.
Cook over the campfire
- Place the packet on a campfire grate over medium heat for 25-30 minutes. The visual cue is steady sizzling steam escaping only when opened, and the packet appearing slightly puffed.
- Flip the packet halfway through cooking so both sides roast evenly. The visual cue is a clean flip with potatoes and onions staying packed together.
Finish and serve
- Open the packet and sprinkle with shredded cheddar cheese if desired, then reseal. The visual cue is melted-cheese-ready steam lifting as soon as the foil opens.
- Return the resealed packet to medium heat for 2 minutes to melt the cheese. The visual cue is glossy melted cheddar coating the potato slices.
- Serve hot directly from the packet. The visual cue is golden, tender potato slices visible with onions and buttered edges.
Notes
For best browning, slice potatoes thin and keep the packet well-sealed so they steam then roast; serve immediately for the crispest edges. Store leftovers in the fridge up to 3 days and reheat in a foil packet or microwave until hot. Freezing is not recommended because the potatoes can turn mealy. If you want a lighter option, use olive oil in place of butter and still season generously.
