Preheat a camp oven or enclosed BBQ to 400 degrees F (205 degrees C).
Cut each sheet of puff pastry in half.
Lay a hotdog on the pastry and roll around until it just overlaps. Cutaway the remaining puff pastry. Repeat with the remaining hot dogs and puff pastry.
Take each puff pastry-wrapped hot dog and thinly slice it into rounds about 1/3-inch (1cm) thick.
Lay the hot dog slices on a paper-lined baking tray. Each round should be just touching the ones next to it.
Cook in the preheated camp oven until the pastry has puffed and is golden brown, about 12 minutes.
Let cool slightly before serving, so no one burns their fingers or mouth. These can be served with ketchup and/or mustard for dipping.