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Oreo Brownies

Course Dessert
Cuisine American
Keyword M&M Brownie Bars
Prep Time 10 minutes
Cook Time 20 hours
Total Time 20 hours 10 minutes
Servings 1 8x8 pan
Calories 293kcal
Cost $3.45


  • 1 box brownie mix + ingredients called for
  • 12 chocolate sandwich cookies
  • 2/3 cup M&M's separated


  • Line an 8 x 8 pan with parchment paper and then lightly spray the paper with nonstick spray. This will help in easy removal of the brownies.
  • Preheat the oven according to brownie mix instructions.
  • In a large bowl, prepare the brownies according to the brownie mix instructions.
  • Coarsely chop or crush the Oreos. You can crush or chop them as large or as fine as you like. I like some bigger chunks in these brownies.
  • Mix the chopped oreos and 1/3 cup of the M&M's into the batter.
  • The batter will be thick! Pour the batter into the prepared pan and sprinkle the remaining 1/3 cup of M&M's evenly over the top of the brownies.
  • Bake according to the directions for an 8 x 8 pan. Ever so slightly under-baking these brownies makes them ultra fudgy and keeps the cookies softer throughout the batch.


Calories: 293kcal