The process goes like this: you get a good hot fire going. Put your pie iron on the grill to warm it. Then make your sandwich and get it ready. Take the iron off the heat and open it up. Spray some Pam on both sides of the opened iron. Put your sandwich inside and close the pie iron. Put it on a hot spot over the fire. Turn about every 1-2 minutes. Check the sandwich after about 5-7 minutes. Remove from the heat when toasted.
Our camping buddy Patty tried a variation on the sandwich using a toaster waffle. She filled the waffle with nutella and cherry pie filling then toasted until crispy brown.
Hobo Pie Irons are available from several outdoor stores. I would recommend buying a quality iron (Rome Company) and don't get the cheap Walmart versions. Be careful while using them because they get REALLY hot. Supervise children and drunk adults when using the pie irons around the fire. Hobo Pie Irons are alot of fun and the pies are delicious....!