I actually got the idea for these from my niece Angie. I put my own spin on them using the ingredients I had at home. Took them to a scout activity and they were a hit. So, for those who need a good sugar rush, here is my recipe.
1 pkg. fudge brownie mix
approx. 2 sleeves graham crackers (I used cinnamon and it was great)
a couple handfuls of mini marshmallows (you could cut up the big ones but that is really messy)
a couple handfuls of semi-sweet chocolate chips
Preheat oven according to the brownie package directions. Line a baking pan with foil and spray with Pam. (Or do what I did and use nonstick foil.) Break up graham crackers as desired and fill up baking sheet, leaving a little space between the cracker pieces so the brownie can get through. I broke them along both dotted lines and then broke each small rectangle into 2 squares. You could leave the crackers whole, but I think letting some batter through helps. Distribute the marshmallows and chocolate chips over the crackers. It isn't easy to get them even, so don't try too hard. Mix up the brownies according to package directions for fudgy brownies. Spoon the brownie mix into the pan. I poured it instead and missed getting some on most of the edges. When you bake it, the batter will spread a bit, but not completely. I used a large cookie sheet. You could avoid the problem by using a 13x9 pan instead, but I need to feed a room full of scouts. Bake until the brownies are done to your liking. Cut when warm.