Have all your ingredients out of their packages and ready to go. Place one reese's peanut butter cup on top of a graham cracker square. Right next to it, have another graham cracker with 2 or 3 slices of frozen banana on top of it. Roast two marshmallows over the open flame of a bonfire until the inside is nice and soft.I prefer a slight char to give an added smokiness to the s'more. Once the marshmallows are heated up, put it on top of the Reese's peanut butter cup and immediately take the graham cracker with banana and sandwich them together. Be sure and hold down to allow the Reese's to melt. I love the saltiness of the peanut butter mixed with the sweet chocolate marshmallow goo and the contrast in temperatures with the hot marshmallows and cold bananas. Enjoy!