This is a dessert I made for the shelter yesterday. I quadrupled the recipe but I will give you the measurements for a single recipe.
Make your favorite brownie recipe or prepare a box of brownie mix. Pour half of the batter in the bottom of a 9X11 pan which has been sprayed with cooking spray and lined with parchment. Place a layer of graham crackers over the batter.
Place a layer of milk chocolate bars over the crackers.
Add another layer of graham crackers.
Sprinkle a bag of miniature marshmallows over the crackers.
Cover with the remaining brownie batter. Bake at 350 degrees for about 30 minutes or until a toothpick stuck in the middle comes out clean.
I am guessing that these were very good though I never got a taste of them.