Brownie S'mores Bars

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.