Start by making a fairly decent fire. You need it to be pretty hot in order to pop the corn kernels and not just burn them slowly.

Next, place about 1 Tbsp of popcorn kernels and 1 Tbsp of oil into an empty can. Hang the can from the end of a roasting stick.

Place the can over the hot fire and shake gently. Once you hear popping noises, shake continuously until it stops.

Carefully cut the can open, the edges will be sharp, top with melted butter and salt to enjoy!