Print Recipe

S’Mores Oreo Brownies

Author: Kristin


  • 1 box of family size Chocolate Fudge Brownie Mix + ingredients called for on box You could also use your favorite recipe as long as it is enough for a 13x9" pan
  • 8 graham crackers
  • 28 Oreo cookies
  • 1 cup marshmallows for mixing
  • 1 1/2 cups marshmallows for topping


  • Preheat oven to 350 degrees and place rack in the center of the oven.
  • Line a 13"x9" pan with foil or parchment paper and spray lightly with cooking spray.
  • Prepare brownie mix or recipe according to instructions.
  • Place graham crackers in the bottom of the pan, breaking as needed to fit.
  • Pour half of the brownie batter over the graham crackers and spread very gently with a knife to cover.
  • Place Oreo cookies in a single layer on top of batter.
  • Add one cup of mini marshmallows to the remaining brownie batter and fold in gently.
  • Spread batter gently over Oreos, placing mini marshmallows as evenly as possible.
  • Bake for approximately 27 minutes or until a toothpick inserted in the middle comes out mostly clean.
  • Switch to broiler and sprinkle remaining marshmallows evenly on top of brownies.
  • Place pan back into the center of the oven and leave door cracked open for about two minutes so marshmallows can brown. Watch closely as they can burn quickly!
  • Allow to cool completely before cutting into squares. *Pro-tip: To prevent sticking, run knife under warm water before each slice.