1.5 oz. chocolate bars (as many as necessary; one bar yields 4 s'mores)
1 box graham crackers
Place three squares of chocolate (or about 1/4 of the bar) on half of a sheet of graham cracker. Place one marshmallow on the end of a skewer and toast over an open flame (campfire, outside grill or candle). Place toasted marshmallow on graham cracker. Gently press a second half sheet of graham cracker on top of the toasted marshmallow.
Repeat as necessary. Toasted marshmallows will have very hot centers. Children should be supervised around open flame. Alternately, marshmallows can be toasted in the metal tray on the medium setting of a toaster oven.