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Monster Cookie Brownies | Monster Cookies | Brownies | Brookies | Monster cookie brownies start with a boxed brownie mix and then topped with a homemade monster cookie dough. Two desserts in one! Milk chocolate brownies and monster cookies loaded with peanut butter, oats, chocolate chips, and m&m's. #dessert #easydessertrecipes #brownies

Easy Monster Cookie Brownies

Monster cookie brownies start with a boxed brownie mix and then topped with a homemade monster cookie dough. Two desserts in one! Milk chocolate brownies and monster cookies loaded with peanut butter, oats, chocolate chips, and m&m's.
Course Dessert
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 35 minutes
Servings 15 bars
Author Jessica - Together as Family

Ingredients

Brownies

  • 1 box (18.3 oz) milk chocolate brownie mix (plus ingredients called for on box)

Monster Cookie Dough

  • 1/3 cup creamy peanut butter
  • 2 tablespoons butter, softened
  • 1/4 cup brown sugar
  • 2 tablespoons granulated sugar
  • 1 large egg
  • 1/2 teaspoon vanilla extract
  • 1/3 cup all-purpose flour
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/4 cup quick oats
  • 1/4 cup miniature chocolate chips
  • 1/4 cup mini m&m's (plus more for on top)

Instructions

  1. Heat oven to 350 degrees. Prepare a 9x13 baking pan and spray with cooking spray, line with parchment paper, or line with tin foil (be sure to spray the tin foil with spray if you use it).

  2. Prepare brownies according to the direction on the box. Pour brownie batter into the baking pan and set aside. 

  3. In a mixing bowl, add the peanut butter and softened butter. Stir with a fork until combined. Add brown sugar, sugar, egg, and vanilla extract. Stir with the fork until combined and mixed together. 

  4. Add the flour, baking soda, and salt. Stir just until combined. Add the quick oats, chocolate chips, and m&m's. Stir again until combined. 

  5. Drop spoonful's of the monster cookie dough over the brownie batter OR you can use your hands, grab some cookie dough and flatten it out (as best you can) and lay it on top of the brownie batter. This is how I do it and it gets an even layer on top of the brownies. Either way works just fine!

  6. Bake for 25-35 minutes or until done in the center. Use a toothpick to make sure it's not wet in the center before pulling them out. Mine usually take around 30 minutes to cook to my liking. 

  7. Let cool in the pan for 30 minutes to 1 hour and then cut into squares. Store any leftover covered at room temperature. 

Recipe Notes

Make sure that your brownie mix is for a 9x13 baking pan. I think on some boxes it's called 'family size' or just follow the recommended ounces size in the recipe. 

 

Linking this recipe at the weekend potluck