If you’re searching for the ultimate indulgent dessert that combines rich chocolate brownies with beloved cookies, look no further than these Ultimate Cookie Oreo Brownies. This triple-layered masterpiece features dense fudgy brownie layers sandwiching crushed Oreos and cookie butter cookies, creating an irresistible treat that’s perfect for parties, potlucks, or when you simply need an extraordinary chocolate fix. These brownies deliver on every level with their contrasting textures and flavors that will have everyone asking for the recipe.

The magic of these Ultimate Cookie Oreo Brownies lies in their carefully constructed layers. The bottom brownie layer provides a rich, fudgy foundation that’s dense and chocolatey. The middle section bursts with crushed Oreo cookies mixed with golden cookie butter cookies, adding delightful crunch and complementary flavors. Finally, the top brownie layer ties everything together while scattered chocolate chips on the surface add extra melty goodness. Each bite delivers a perfect combination of chewy, crunchy, and gooey textures that make these brownies absolutely unforgettable.

What makes this recipe especially appealing is how it takes familiar favorite treats and transforms them into something even more spectacular. Oreo cookies are already a beloved snack on their own, and brownies are a classic comfort dessert. By combining them with cookie butter cookies and extra chocolate, you create a dessert that’s greater than the sum of its parts. The result is a show-stopping treat that looks impressive but is surprisingly straightforward to prepare at home.

These Ultimate Cookie Oreo Brownies are ideal for chocolate lovers who can’t get enough of rich, decadent desserts. They’re substantial enough to satisfy serious sweet cravings, making them perfect for celebrations, bake sales, or bringing to gatherings where you want to make a memorable impression. The visual appeal of the distinct layers when you cut into these brownies adds an extra wow factor that makes them Instagram-worthy and conversation-starting.

One of the best aspects of this recipe is its flexibility. While the recipe calls for specific cookies, you can customize the middle layer with your favorite cookies or sandwich cookies. Try using peanut butter cookies, chocolate chip cookies, or even graham crackers for different flavor profiles. The brownie batter itself is forgiving and works beautifully with various mix-ins and toppings, allowing you to make this recipe your own while maintaining the impressive layered structure.

Making these brownies does require a bit more effort than standard brownies since you’re working with multiple layers, but the process is still quite manageable for home bakers of all skill levels. The key is preparing your layers in the correct order and allowing proper baking time so everything cooks through evenly. The slight extra effort is absolutely worth it when you see the beautiful layers and taste the incredible combination of flavors and textures.

Storage is simple with these Ultimate Cookie Oreo Brownies. They keep well at room temperature in an airtight container for up to four days, though they rarely last that long! For longer storage, you can refrigerate them for up to a week or freeze individual portions for up to three months. The brownies actually taste fantastic chilled, as the layers firm up slightly and the flavors meld together even more. Many people enjoy eating them straight from the refrigerator for an extra-fudgy experience.

These brownies are rich and satisfying, so a smaller portion goes a long way. Cut them into generous squares for serious chocolate lovers, or into smaller bites for parties where guests might want to sample multiple desserts. The recipe yields approximately 16 large brownies or up to 24 smaller pieces depending on how you cut them. Regardless of size, each piece delivers that perfect combination of brownie, cookie, and chocolate that makes this dessert so special.

Serving suggestions for Ultimate Cookie Oreo Brownies are endless. Enjoy them plain to appreciate the pure chocolate and cookie flavors, or elevate them with a scoop of vanilla ice cream for an à la mode experience. A drizzle of chocolate ganache or caramel sauce adds even more decadence, while a dusting of powdered sugar provides an elegant finish. Some people enjoy warming them slightly in the microwave before serving to enhance the gooey factor and make the chocolate chips extra melty.

The beauty of this recipe is how it brings joy to both the baker and everyone lucky enough to taste the results. There’s something deeply satisfying about creating these impressive layered brownies from scratch and watching people’s faces light up when they take their first bite. The combination of familiar flavors presented in a new way creates a sense of comfort and excitement simultaneously, making these brownies perfect for creating happy memories around the dessert table.

Ingredients

Cookie Oreo Brownie Layers:

1 box brownie mix (plus required eggs, oil, and water per package instructions)
16 Oreo cookies, crushed into rough pieces
1 cup cookie butter cookies, crushed
1/2 cup semi-sweet chocolate chips
Optional: 1/4 cup additional brownie mix for thicker layers
Cooking spray or butter for greasing pan

Instructions

Preheat your oven to 350°F (175°C) and prepare a 9×13 inch baking pan by lining it with parchment paper or aluminum foil, leaving overhang on the sides for easy removal, then lightly grease the lining with cooking spray or butter.
Prepare the brownie batter according to package instructions in a large mixing bowl, combining the brownie mix with eggs, oil, and water as directed, mixing until just combined and smooth without overmixing.
Pour approximately half of the brownie batter into the prepared baking pan, spreading it evenly across the bottom with a spatula to create the first layer, making sure to reach all corners and create an even surface.
Crush the Oreo cookies into rough pieces by placing them in a sealed plastic bag and gently crushing with a rolling pin or the bottom of a measuring cup, leaving some larger chunks for texture rather than pulverizing them into fine crumbs.
Sprinkle the crushed Oreo cookies evenly over the first brownie layer, covering the entire surface and gently pressing them down slightly so they adhere to the batter below without sinking completely.
Crush the cookie butter cookies using the same method and sprinkle them over the Oreo layer, creating another even layer of crunchy cookie pieces throughout the middle section of the brownies.
Pour the remaining brownie batter over the cookie layers, carefully spreading it to cover all the cookies and create an even top layer, using a spatula to gently push batter into corners and edges without disturbing the cookie layers too much.
Sprinkle the semi-sweet chocolate chips over the top layer of brownie batter, distributing them evenly across the entire surface so every piece will have melty chocolate chips when cut.
Bake in the preheated oven for 35-45 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs attached, checking at the 35-minute mark to prevent overbaking and ensuring the brownies remain fudgy.
Remove from oven and allow the brownies to cool completely in the pan on a wire rack for at least 2 hours, or refrigerate for 1 hour for easier cutting and cleaner slices.
Once cooled, use the parchment paper overhang to lift the entire brownie slab out of the pan, place it on a cutting board, and use a sharp knife to cut into squares, wiping the knife clean between cuts for the neatest presentation.
Serve the Ultimate Cookie Oreo Brownies at room temperature or chilled, optionally topped with ice cream, whipped cream, or additional chocolate sauce for an extra-decadent treat.

Ultimate Cookie Oreo Brownies

Triple-layered fudgy brownies with crushed Oreos and cookie butter cookies, creating an irresistible decadent chocolate dessert.

Print Recipe Pin Recipe

Prep Time 20

Cook Time 40

Total Time 1

Servings: 16 brownies

Course: Dessert, Snack

Cuisine: American

Calories: 320

Ingredients Equipment Method Notes

Ingredients

Brownie Layers

1 box brownie mix plus required eggs, oil, water per package
16 Oreo cookies crushed into rough pieces
1 cup cookie butter cookies crushed
0.5 cup semi-sweet chocolate chips
Cooking spray or butter for greasing

Equipment

9×13-inch baking pan
Mixing bowls
Spatula
Rolling pin
Wire cooling rack

Method

Preheat oven to 350°F (175°C). Line 9×13 inch baking pan with parchment paper, leaving overhang. Grease lightly.
Prepare brownie batter according to package instructions, mixing until just combined.
Pour half of brownie batter into prepared pan, spreading evenly to corners.
Crush Oreo cookies into rough pieces and sprinkle evenly over first brownie layer.
Crush cookie butter cookies and sprinkle over Oreo layer.
Pour remaining brownie batter over cookie layers, spreading gently to cover completely.
Sprinkle chocolate chips evenly over top layer.
Bake 35-45 minutes until toothpick comes out with few moist crumbs. Cool completely in pan for 2 hours.
Lift brownies using parchment overhang, cut into squares with sharp knife, and serve.

Notes

For cleanest cuts, refrigerate brownies for 1 hour before slicing. Wipe knife between cuts. Store in airtight container at room temperature for 4 days or refrigerate for 1 week.

Tips for Perfect Results

Achieving the best results with Ultimate Cookie Oreo Brownies requires attention to a few key details. First, don’t overmix your brownie batter, as this can lead to cake-like rather than fudgy brownies. Mix just until the ingredients are combined and no dry streaks remain. Second, be generous with your cookie layers—the more cookies you add, the more dramatic and delicious the layers will be when you cut into the brownies. Third, allow adequate cooling time before cutting. This patience ensures clean cuts that showcase the beautiful layers rather than creating a messy appearance.

The type of brownie mix you choose matters significantly. Look for a fudgy brownie mix rather than a cake-style mix to achieve that dense, rich texture that contrasts so well with the crunchy cookie layers. Some bakers prefer making brownies from scratch, which also works beautifully with this recipe. If you go the homemade route, use a recipe specifically designed for fudgy brownies to get the best results with these layers.

Cookie selection can be customized to your preferences. While Oreos are the classic choice and provide that iconic black-and-white appearance, you can experiment with other sandwich cookies like peanut butter Oreos, mint Oreos, or even chocolate chip cookies. The cookie butter cookies add a wonderful caramel-like flavor, but you could substitute with golden Oreos, vanilla wafers, or shortbread cookies for different flavor profiles while maintaining the layered structure.

Variations to Try

Once you’ve mastered the basic Ultimate Cookie Oreo Brownie recipe, there are countless ways to customize it to your tastes. Try adding a cream cheese swirl between layers by beating softened cream cheese with sugar and an egg, then dolloping it over the first brownie layer before adding cookies. You could create a peanut butter version by using peanut butter Oreos and adding spoonfuls of peanut butter between layers. For mint lovers, substitute mint Oreos and add a few drops of peppermint extract to the brownie batter.

Another delicious variation involves adding a caramel layer. After spreading the first brownie layer, drizzle with caramel sauce before adding the cookie layers. The caramel will become gooey and delicious as it bakes, adding another dimension of flavor. You could also create a s’mores version by using graham cracker crumbs instead of cookie butter cookies and adding mini marshmallows to the top layer during the last 5 minutes of baking.

For special occasions, consider making these brownies even more festive. Add sprinkles to match your party theme, use seasonal Oreo flavors, or drizzle with colored melting chocolate once cooled. Halloween versions could use orange cream Oreos, while Christmas brownies might feature peppermint or gingerbread cookies in the layers. These adaptations make the recipe perfect for any celebration while maintaining the impressive layered structure that makes these brownies so special.

Conclusion: The Ultimate Chocolate Indulgence

Ultimate Cookie Oreo Brownies represent dessert perfection for anyone who loves rich chocolate treats combined with favorite cookies. The multiple layers create visual appeal and textural contrast that elevates these beyond ordinary brownies, while the combination of familiar flavors makes them instantly craveable. Whether you’re baking for a special occasion or simply treating yourself, these brownies deliver satisfaction in every bite. The recipe is approachable enough for casual bakers yet impressive enough to serve at gatherings where you want to wow your guests. Try making these Ultimate Cookie Oreo Brownies soon—they just might become your new favorite go-to dessert for any occasion that calls for serious chocolate indulgence.

Ultimate Cookie Oreo Brownies