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Monster Cookie Fudgy Brownies Recipe

5 from 116 reviews

These Monster Cookie Fudgy Brownies combine the rich, indulgent texture of fudgy brownies with the delightful crunch and sweetness of monster cookie mix-ins like oats, peanut butter, chocolate chips, and colorful candy pieces. Perfect for anyone craving a decadent treat with a fun twist.

Ingredients

Scale

Brownie Base Ingredients

  • 1 box brownie mix (about 18 oz)
  • Ingredients called for on the brownie mix box (typically eggs, oil, and water)

Mix-Ins

  • 1/2 cup creamy peanut butter
  • 1/2 cup rolled oats
  • 1/2 cup chocolate chips
  • 1/2 cup candy-coated chocolate pieces (such as M&Ms)

Instructions

  1. Prepare Brownie Batter: Preheat your oven according to the brownie mix package instructions, usually 325°F to 350°F. In a large mixing bowl, combine the brownie mix with the required ingredients (eggs, oil, water) and stir until smooth and fully incorporated.
  2. Fold in Mix-Ins: Gently fold in the peanut butter, rolled oats, chocolate chips, and candy-coated chocolate pieces into the brownie batter, ensuring an even distribution without over-mixing.
  3. Bake Until Fudgy: Pour the batter into a greased or parchment-lined baking pan. Bake for the time specified on the brownie mix box, typically 20-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs but not wet batter. Allow to cool before cutting into squares.

Notes

  • For extra fudginess, slightly underbake the brownies and let them cool completely to set.
  • Use creamy peanut butter to blend smoothly into the batter; chunkier varieties may affect texture.
  • Feel free to substitute candy pieces with your favorite nuts or dried fruit for customization.
  • Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

Keywords: Monster Cookie Brownies, Fudgy Brownies, Peanut Butter Brownies, Chocolate Chip Brownies, Candy Brownies