Monster Cookie Fudgy Brownies are the ultimate indulgence for those who believe in the more-is-more philosophy when it comes to desserts. This decadent creation layers rich, fudgy brownies with a chewy monster cookie dough, packed with oats, peanut butter, chocolate chips, and M&Ms. It’s a hybrid dessert that combines the best of both worlds, offering a delightful texture contrast and a burst of flavors with every bite. Perfect for special occasions, bake sales, or when you’re simply craving something sweet and satisfying, these brownies are sure to impress.

Why You’ll Love Monster Cookie Fudgy Brownies
There’s a lot to love about Monster Cookie Fudgy Brownies. They’re a dream come true for anyone with a sweet tooth, offering multiple dessert experiences in one. The gooey brownie base provides a deep chocolatey foundation, while the monster cookie layer adds a fun, colorful crunch with every mouthful. These brownies are not only a feast for the taste buds but also a visual treat, making them a hit at any gathering. Plus, they’re surprisingly easy to make, requiring no fancy techniques or ingredients, which means you can whip up a batch whenever the mood strikes.
Expert Tips and Tricks
- Chill the Dough: Chill the monster cookie dough before layering it on the brownie batter to make it easier to handle.
- Use Quality Ingredients: Opt for high-quality chocolate and peanut butter for the best flavor.
- Don’t Overbake: Keep an eye on the oven; the brownies should be removed when slightly underbaked for that perfect fudgy texture.
- Let Cool Completely: Patience is key! Allow the brownies to cool completely in the pan before slicing to ensure clean cuts and intact layers.
- Room Temperature Ingredients: Ensure your eggs and butter are at room temperature to achieve a smooth, well-incorporated batter.

Recipe Variations and Possible Substitutions
- Nut-Free Version: Substitute peanut butter with sunflower seed butter and omit the nuts if allergies are a concern.
- Gluten-Free Adaptation: Use gluten-free oats and a gluten-free brownie mix to cater to gluten sensitivities.
- Customize Your Mix-Ins: Feel free to experiment with different mix-ins for the cookie layer, such as white chocolate chips, butterscotch chips, or chopped nuts.
Serving and Pairing Suggestions
Monster Cookie Fudgy Brownies are rich and satisfying on their own but can be taken to the next level with a scoop of vanilla ice cream or a dollop of whipped cream. For a fun dessert platter, pair them with classic chocolate chip cookies and peanut butter cookies to keep with the theme. Beverage-wise, a cold glass of milk or a cup of strong coffee makes the perfect companion to these decadent treats.

Storage and Reheating Tips
- Storing: Keep the brownies in an airtight container at room temperature for up to 3 days or refrigerated for up to a week.
- Freezing: Wrap individual brownie squares in plastic wrap and then aluminum foil before freezing. They can be stored for up to 3 months.
- Reheating: Thaw overnight in the refrigerator if frozen, and warm up in the microwave for a few seconds if you prefer them slightly gooey.
Recipe FAQs
- Can I make these brownies in advance? Yes, they can be made a day ahead. Store covered at room temperature until ready to serve.
- How do I know when the brownies are done baking? The brownies are done when the edges are set but the center is still a bit soft.
- Can I use a brownie mix? Yes, a store-bought brownie mix can be a convenient base for this recipe. Just follow the mix instructions for the batter.
Monster Cookie Fudgy Brownies
Indulge in the ultimate dessert with Monster Cookie Fudgy Brownies, combining rich chocolatey layers with the colorful crunch of monster cookie dough. Perfect for satisfying your deepest dessert cravings!
Ingredients
- 1 cup unsalted butter
- 2 cups granulated sugar
- ¾ cup cocoa powder
- 1 cup all-purpose flour
- ½ teaspoon salt
- 4 large eggs
- 2 teaspoons vanilla extract
For the Monster Cookie Layers
- ¾ cup creamy peanut butter
- ½ cup light brown sugar
- ¼ cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 1 cup quick oats
- ½ teaspoon baking soda
- ½ cup chocolate chips
- ½ cup M&Ms
Instructions
- Preheat Oven & Prepare Pan: Preheat the oven to 350°F. Line a 9×13 inch baking pan with parchment paper, leaving an overhang for easy removal.
- Make the Brownie Batter: Melt the butter and mix with sugar, cocoa powder, flour, salt, eggs, and vanilla until smooth. Pour into the prepared pan.
- Prepare Monster Cookie Dough: In a separate bowl, cream together peanut butter, brown sugar, granulated sugar, egg, and vanilla. Stir in oats, baking soda, chocolate chips, and M&Ms.
- Assemble: Drop spoonfuls of monster cookie dough evenly over the brownie batter. Use a knife or spatula to gently swirl together.
- Bake: Bake for 35-40 minutes or until set. Allow to cool completely in the pan before lifting out and cutting into squares.
Notes
Nutrition Information:
Yield: 16 Serving Size: 1Amount Per Serving: Calories: 446Total Fat: 23gSaturated Fat: 11gTrans Fat: 0gUnsaturated Fat: 10gCholesterol: 90mgSodium: 205mgCarbohydrates: 56gFiber: 3gSugar: 42gProtein: 7g






