6 (big) graham crackers, divided
2 Tbsp butter, melted
1 stick butter, softened
1 Devil’s food cake mix
2-3 tsp water
Preheat oven to 350. Crush 4 graham crackers and mix with 2 Tbsp melted butter. Press into bottom of 8x8 (or 9x9) pan.
In mixing bowl, combine softened butter and egg. Mix on med speed 3 minutes or until doubled in size and lighter in color. Slowly mix in cake mix, and add water as needed. Batter should be very stiff. Spread onto graham cracker crust with fingers, leaving big dimples in the batter.
Bake 18-20 minutes, just until center is set and toothpick comes out clean. Cool slightly. Set oven to low broil. Crumble remaining 2 graham crackers into ½ inch pieces. Sprinkle onto warm chocolate stuff. Dump a bunch of marshmallows on top, enough to nearly cover the entire surface. Broil just a couple of minutes, until marshmallows are to desired doneness. Watch carefully or they will burn! Serve warm and sticky.