For each "pie" get two squares of aluminum foil and place them on top of each other (you will need it to be this thick as you will be putting this in the coals of your fire). For each "pie" put one hamburger, sliced onions, sliced potatoes (make sure they are thinly sliced or they will not cook well), sliced carrots, a tablespoon of butter & some dry onion soup mix (this adds excellent flavor). Seal up your "pie" and place in the coals. Cook for 30 to 45 minutes or until done. Make sure the coals are red hot but don't put them in the flames. Enjoy!