One box brownie mix, be sure to get the 13-inch x 9-inch size (not the 9-inch x 9-inch size)
Milk, in the amount listed for water on the brownie mix directions
One cup chocolate chips
One cup graham cracker crumbs (crush crackers roughly by hand)
12 whole marshmallows and 6 marshmallows, cut into small pieces
Pre-heat oven to 350°F.
Prepare the brownie mix, according to the package directions, but replacing the water with milk. Mix in the chocolate chips, crushed graham crackers and cut up marshmallows.
Pour into greased 13-inch x 9-inch pan and place the twelve whole marshmallows on top. Bake for 25 minutes, or until moist crumbs stick to a toothpick inserted in the middle. These are best eaten when completely cooled, but if you want to dig in while still warm, cut with a knife dipped in hot water to get a clean cut. Store tightly wrapped in foil.