Cookie-Stuffed Brownies Recipe
Imagine biting into a thick, decadent brownie and discovering a hidden layer of chocolate sandwich cookies nestled right in the middle—welcome to the world of Cookie-Stuffed Brownies! This treat is the ultimate mashup for dessert lovers, combining the rich fudginess of brownies with the irresistible crunch and creaminess of classic cookies. Whether you’re baking for a party, a family movie night, or just to satisfy a late-night craving, these brownies promise a little surprise in every bite.

Ingredients You’ll Need
The beauty of Cookie-Stuffed Brownies is that you only need a handful of simple ingredients, but each one pulls its weight in flavor and texture. Here’s what you’ll need to make this showstopping dessert come to life:
- Brownie mix: Use your favorite boxed mix for convenience and reliability—it’s the foundation for all that chocolatey goodness.
- Eggs, oil, and water: These are the standard add-ins for most brownie mixes, creating the perfect batter consistency.
- Chocolate sandwich cookies: Go for Oreos or any similar variety—the creamy filling and crunchy cookie provide the surprise middle layer.
- Semi-sweet chocolate chips (optional): Sprinkle these on top for an even richer, gooier finish.
- Nonstick spray or parchment paper: Essential for easy pan release and stress-free slicing.
How to Make Cookie-Stuffed Brownies
Step 1: Prep Your Pan and Oven
Start by preheating your oven to 350°F. Line an 8×8-inch or 9×9-inch baking pan with parchment paper, letting a bit hang over the edges for easy lifting later. Alternatively, give the pan a generous coating of nonstick spray. This step is crucial for effortless removal and ensures your brownies stay intact when you’re ready to slice and serve.
Step 2: Mix the Brownie Batter
Prepare your brownie batter according to the instructions on the box. Usually, that means combining the mix with eggs, oil, and water in a bowl. Stir until everything is just combined—overmixing can make brownies tough, and we want them fudgy and tender!
Step 3: Layer the Brownies and Cookies
Pour half of the brownie batter into your prepared pan and spread it into an even layer. Next, arrange the chocolate sandwich cookies across the surface, pressing them gently into the batter. Make sure the cookies are in a single, snug layer so every square gets a cookie surprise.
Step 4: Add the Second Brownie Layer
Pour the remaining brownie batter over the cookies, using a spatula to spread it evenly and fully cover the cookies. If you’re using chocolate chips, now’s the time to sprinkle them generously over the top for a beautiful, melty finish.
Step 5: Bake to Perfection
Slide the pan into your preheated oven and bake for 35 to 40 minutes. Check for doneness by inserting a toothpick into the brownie portion (not through a cookie)—it should come out with a few moist crumbs. Overbaking can dry them out, so keep a close eye for that perfect, fudgy texture.
Step 6: Cool and Slice
Let the Cookie-Stuffed Brownies cool completely in the pan. This patience pays off—cooling allows the brownies to set and makes slicing clean, perfect squares so much easier. For especially tidy edges, you can even chill them in the fridge before cutting.
How to Serve Cookie-Stuffed Brownies

Garnishes
Dress up your brownies with a dusting of powdered sugar, a drizzle of chocolate or caramel sauce, or a dollop of whipped cream. For a playful touch, add a few mini cookies or extra chocolate chips on top. These garnishes make each piece look bakery-worthy and add even more flavor.
Side Dishes
Cookie-Stuffed Brownies pair perfectly with a scoop of vanilla ice cream or a glass of cold milk. Fresh berries add a pop of tartness that balances the richness, while a hot cup of coffee or cocoa makes them even more comforting on a cozy night in.
Creative Ways to Present
Cut brownies into bite-size squares and stack them on a tiered dessert stand for a party, or wrap individual pieces in parchment and twine for a sweet, portable gift. You can even use Cookie-Stuffed Brownies as the base for an over-the-top sundae bar—just add ice cream, sauces, and your favorite toppings!
Make Ahead and Storage
Storing Leftovers
Once cooled, store leftover Cookie-Stuffed Brownies in an airtight container at room temperature for up to 3 days. They’ll stay moist and fudgy, and the cookies in the center will maintain their delightful texture without becoming soggy.
Freezing
If you want to keep brownies on hand for longer, wrap individual squares tightly in plastic wrap and place them in a freezer-safe bag. They’ll keep beautifully for up to 2 months—just thaw at room temperature for an hour or so before enjoying.
Reheating
For a warm, gooey treat, pop a brownie square in the microwave for about 10-15 seconds. The chocolate chips will get melty, and the cookies will be perfectly soft. If you’re reheating from frozen, give it a bit longer or allow it to fully thaw first.
FAQs
Can I use homemade brownie batter instead of a box mix?
Absolutely! Feel free to swap in your favorite from-scratch brownie recipe. Just make sure you have enough batter to create two layers and sandwich the cookies in between.
What kinds of cookies work best for Cookie-Stuffed Brownies?
Chocolate sandwich cookies like Oreos are classic, but you can experiment with peanut butter cookies, chocolate chip cookies, or even cookie dough for a fun twist. Just be sure the cookies aren’t too thick, so they bake up nicely inside the brownies.
How do I know when the brownies are done baking?
Use a toothpick to test the brownie layer (avoid the cookie section). You’re looking for a few moist crumbs—if it comes out clean, they might be overbaked, and if it’s very gooey, give them a few more minutes.
Why did my brownies fall apart when I sliced them?
Brownies are delicate while warm, especially when stuffed! Letting them cool completely, or even chilling them in the fridge, will help them set and slice more neatly. A sharp knife, wiped clean between cuts, also helps.
Can I double the recipe for a crowd?
Yes! Just use a 9×13-inch pan and double all of the ingredients. Keep an eye on the baking time, as larger batches might need a few extra minutes in the oven.
Final Thoughts
If you’re looking for a dessert with a wow factor and a delicious secret center, Cookie-Stuffed Brownies are sure to become a new favorite in your kitchen. Whether you stick with the classic Oreo version or get creative with your own cookie combinations, these brownies are a joy to make and share. Give them a try—you’ll be amazed at how something so simple can bring so much happiness in every bite!
Print
Cookie-Stuffed Brownies Recipe
- Total Time: 45 minutes
- Yield: 12 brownies 1x
- Diet: Vegetarian
Description
Delight in rich, fudgy brownies generously stuffed with chocolate sandwich cookies for an irresistible twist on a classic dessert. This Cookie-Stuffed Brownies recipe combines the best of two iconic treats into one decadent bake, perfect for satisfying any sweet tooth with minimal effort.
Ingredients
Brownie Batter
- 1 box brownie mix (plus ingredients listed on the box, usually eggs, oil, and water)
Cookie Filling
- 12 to 16 chocolate sandwich cookies (such as Oreos)
Topping (Optional)
- 1 cup semi-sweet chocolate chips
Others
- Nonstick spray or parchment paper for lining the pan
Instructions
- Preheat oven: Set your oven to 350°F (175°C) and prepare an 8×8-inch or 9×9-inch baking pan by lining it with parchment paper or greasing it thoroughly with nonstick spray.
- Prepare brownie batter: Following the instructions on the brownie mix box, combine the mix with required eggs, oil, and water to form the batter.
- Layer the base: Pour half of the prepared brownie batter into the baking pan, spreading it evenly across the bottom.
- Add the cookies: Arrange the chocolate sandwich cookies in a single layer on top of the brownie batter. Gently press them down to ensure good contact.
- Cover the cookies: Pour the remaining brownie batter over the cookies, smoothing the surface to fully cover them.
- Add toppings: If desired, sprinkle the semi-sweet chocolate chips evenly over the top for extra chocolatey goodness.
- Bake: Place the pan in the preheated oven and bake for 35 to 40 minutes. Check doneness by inserting a toothpick into the brownie (avoiding going through a cookie); it should come out with a few moist crumbs.
- Cool and serve: Allow the brownies to cool completely in the pan before cutting into 12 squares to ensure clean slices and prevent crumbling.
Notes
- For a homemade approach, substitute the boxed brownie mix with your favorite from-scratch brownie recipe.
- Experiment with different cookies such as peanut butter cookies, chocolate chip cookies, or even cookie dough for variation.
- Chilling the brownies before slicing can help achieve cleaner edges.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 290
- Sugar: 24g
- Sodium: 190mg
- Fat: 14g
- Saturated Fat: 5g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 25mg