If you’re hunting for the ultimate crowd-pleaser that’s part brownie, part cookie, and one hundred percent outrageous, look no further! Monster Cookie Dough Brownies are as over-the-top and delightful as they sound: a fudgy brownie base topped with a thick layer of soft, peanut buttery, candy-studded cookie dough. Packed with mini M&M’s, chocolate chips, and a swirl of creamy peanut butter, these brownies are pure bliss for anyone who can’t choose between their favorite desserts. Whether you’re bringing them to a bake sale or making a batch just for yourself, these bars always steal the show and leave everyone begging for more.
Ingredients You’ll Need
You’ll be thrilled at how manageable the ingredient list is, with every single item contributing something special—whether that’s richness, chew, color, or an irresistible swirl of sweet and salty. Let’s break down what you’ll need and why it matters for these Monster Cookie Dough Brownies.
- Brownie mix (1 box, 18.3 oz): The fudgy, chocolatey base sets a decadent stage for your cookie dough layer; follow the package instructions for effortless prep.
- Unsalted butter (1 cup, softened): Creamy richness that blends into the cookie dough, making it perfectly smooth and tender.
- Brown sugar (1 cup): Adds a deeper caramel flavor and chewy bite to the cookie dough layer.
- Granulated sugar (1/2 cup): Brightens the sweetness and helps the cookie dough achieve its signature soft texture.
- Milk (2 tablespoons): Loosens up the dough making it creamy but still thick enough to spread.
- Vanilla extract (1 teaspoon): Rounds out all the flavors, providing a subtle warmth that ties everything together.
- All-purpose flour (2 cups): Creates the structure for your edible, egg-free cookie dough.
- Salt (1/2 teaspoon): Just the right amount to sharpen and balance all the big, bold flavors.
- Mini M&M’s (1 cup): Pops of color and crunch, adding a playful vibe and that classic monster cookie personality.
- Mini chocolate chips (3/4 cup): Ensure chocolate in nearly every bite for double-chocolate satisfaction.
- Creamy peanut butter (1/2 cup): Gently binds and flavors the dough with that unmistakable salty peanut goodness.
How to Make Monster Cookie Dough Brownies
Step 1: Bake the Brownie Base
Start by preparing your favorite boxed brownie mix—just as the package instructs—and pour it into a 9×13-inch baking pan. Bake until set and your kitchen smells like chocolate heaven. Let those brownies cool completely, resisting the urge to sneak a corner (for now!) since a cool base will support the cookie dough without melting.
Step 2: Cream Together the Fats and Sugars
Beat the softened butter, brown sugar, and granulated sugar in a large mixing bowl. This step is where the magic starts, creating a fluffy, rich base for that signature Monster Cookie Dough Brownies topping. Keep mixing until the color lightens and the mixture is smooth, about 2-3 minutes.
Step 3: Add Liquids and Flavors
Mix in the milk and vanilla extract to the creamed butter and sugars. These liquids create a smooth, tart dough with gorgeous depth and just the right amount of spreadability for layering on top of your brownies.
Step 4: Incorporate the Dry Ingredients
Stir in the flour and salt, working slowly to avoid overmixing. You’re looking for a soft, thick dough—almost like playdough, but much tastier! The salt ensures the sweetness is perfectly balanced.
Step 5: Fold in Peanut Butter and Mix-Ins
Warm the creamy peanut butter slightly (just a few seconds in the microwave does the trick), then fold it into the dough. Now, gently add the mini M&M’s and mini chocolate chips. This is the point where Monster Cookie Dough Brownies earn their name—each addition brings more fun, color, and flavor.
Step 6: Assemble and Chill
Once your brownies are completely cool, dollop the cookie dough mixture over the top. Use a spatula or clean hands to press and spread the dough gently into an even layer. Pop the pan in the refrigerator for at least 1 hour; this step is key for setting the layers so you get delightfully clean bites.
How to Serve Monster Cookie Dough Brownies
Garnishes
Make your Monster Cookie Dough Brownies even more eye-catching by scattering extra mini M&M’s or chocolate chips over the top before serving. A light dusting of powdered sugar brings an elegant touch, while a drizzle of melted peanut butter transforms each square into a true showstopper.
Side Dishes
Pair these brownies with a tall glass of cold milk for an old-school treat, or serve alongside a scoop of vanilla ice cream for a knockout dessert. If you’re feeling fancy, fresh berries or sliced bananas add a pop of color and a hint of tartness to offset the sweetness.
Creative Ways to Present
For a party platter, cut your Monster Cookie Dough Brownies into bite-size pieces and arrange them on a tray for grab-and-go fun. Turn them into brownie sandwiches by layering a thin scoop of ice cream or whipped cream between two small squares. Or, wrap individual portions with parchment for a portable picnic treat or sweet edible gift.
Make Ahead and Storage
Storing Leftovers
To keep your Monster Cookie Dough Brownies tasting their best, store them in an airtight container in the refrigerator. They’ll stay delicious and soft for up to 5 days, and the chill keeps the cookie dough just the right amount of fudgy.
Freezing
Monster Cookie Dough Brownies freeze beautifully! Wrap each piece tightly in plastic wrap and then again in foil, or place the whole pan (well covered) in the freezer. They’ll stay fresh for up to 2 months—just thaw in the fridge overnight before serving.
Reheating
These brownies are best enjoyed chilled or at room temperature, but if you’re craving a warm treat, microwave a piece for 10-15 seconds. This makes the brownie base slightly gooey and the chocolate bits melty, while the cookie dough stays just firm enough.
FAQs
Can I use homemade brownie batter instead of boxed mix?
Absolutely! If you have a favorite homemade brownie recipe, go for it—just be sure it fits a 9×13-inch pan so you get nice, thick layers beneath your monster cookie dough.
Is the cookie dough layer safe to eat without baking?
Yes, the cookie dough in Monster Cookie Dough Brownies is completely egg-free and safe to eat as prepared. For extra peace of mind, you can heat-treat the flour before using, but the recipe as written is designed for no-bake indulgence.
Can I make these brownies gluten-free?
Definitely! Swap in your favorite gluten-free brownie mix and use a 1:1 gluten-free all-purpose flour blend for the cookie dough. The results are just as decadent and monster-worthy.
What if I don’t have mini M&M’s?
No worries—you can substitute chopped candy bars, regular M&M’s, or even just more mini chocolate chips. Have fun and use what you have on hand for your own custom spin!
Can I make Monster Cookie Dough Brownies ahead of time?
Yes, and they’re actually even better when made a day ahead! Just keep them chilled until you’re ready to slice and serve for the freshest texture and easiest presentation.
Final Thoughts
If you’re ready to knock everyone’s socks off, these Monster Cookie Dough Brownies are the ultimate treat—gooey, colorful, and packed with every flavor you crave. Make a batch and share the happiness; once you taste them, you’ll understand why they’re impossible to resist.
Print
Monster Cookie Dough Brownies Recipe
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour 50 minutes
- Yield: 24 brownies
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
Indulge in these decadent Monster Cookie Dough Brownies, where a layer of chewy brownie is topped with a delightful mix of cookie dough loaded with mini M&M’s, chocolate chips, and peanut butter.
Ingredients
Brownie Layer:
- 1 box (18.3 oz) brownie mix, prepared according to package instructions
Cookie Dough Layer:
- 1 cup unsalted butter (softened)
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 tablespoons milk
- 1 teaspoon vanilla extract
- 2 cups all-purpose flour
- 1/2 teaspoon salt
- 1 cup mini M&M’s
- 3/4 cup mini chocolate chips
- 1/2 cup creamy peanut butter
Instructions
- Bake Brownies: Prepare and bake the brownie mix in a 9×13-inch pan according to the package instructions. Let cool.
- Make Cookie Dough: Beat butter, sugars until fluffy. Add milk, vanilla. Mix in flour, salt. Fold in peanut butter, M&M’s, chocolate chips.
- Assemble: Spread cookie dough over brownies, press into an even layer. Chill for 1 hour.
Notes
- Warm peanut butter for easier spreading.
- Consider using crunchy peanut butter or chopped candy pieces for variation.
Nutrition
- Serving Size: 1 brownie
- Calories: 310
- Sugar: 26g
- Sodium: 150mg
- Fat: 17g
- Saturated Fat: 9g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 35mg
