why make this recipe
Ultimate Slutty Brownies are a delightful dessert that combines three crowd-pleasing elements: cookie dough, Oreo cookies, and rich brownies. This layered treat is perfect for sharing at parties, bringing to picnics, or simply satisfying your sweet tooth. These brownies are fun to make and even more enjoyable to eat, making them a favorite among family and friends.
how to make Ultimate Slutty Brownies
Ingredients:
For the Cookie Layer:
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup granulated sugar
- 1 cup light brown sugar, packed
- 2 large eggs
- 2 tsp vanilla extract
- 2 ½ cups all-purpose flour
- 1 tsp baking soda
- ½ tsp salt
- 2 cups semi-sweet chocolate chips
For the Oreo Layer:
- 24 Oreo cookies (or enough to form an even layer in your pan)
For the Brownie Layer:
- 1 cup unsalted butter
- 8 oz semi-sweet chocolate, chopped
- 1 ½ cups granulated sugar
- 1 cup light brown sugar, packed
- 4 large eggs
- 2 tsp vanilla extract
- 1 cup all-purpose flour
- ½ cup cocoa powder
- ½ tsp salt
Directions:
- Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal. Lightly grease the parchment paper.
- In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until fluffy and smooth, about 2–3 minutes. Beat in the eggs one at a time, then add the vanilla extract.
- In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined. Fold in the chocolate chips. Spread the cookie dough evenly over the bottom of your prepared pan.
- Place a layer of Oreo cookies directly on top of the cookie dough, covering as much of the surface as possible. Slight gaps between cookies are okay, as the brownie layer will fill in the spaces.
- In a medium saucepan, melt the butter and chopped chocolate over low heat, stirring constantly until smooth. Remove from heat and allow it to cool slightly.
- In a large bowl, whisk together the granulated sugar, brown sugar, eggs, and vanilla extract. Slowly add the melted chocolate mixture, whisking continuously. Sift in the flour, cocoa powder, and salt, stirring until just combined.
- Pour the brownie batter over the Oreo layer, spreading it evenly to cover all the cookies. Smooth the top with a spatula.
- Bake in the preheated oven for 35–40 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs (avoid overbaking for fudgier brownies).
- Allow the brownies to cool completely in the pan for about 1 hour. For clean slices, refrigerate the brownies for an additional 30 minutes before cutting. Use the parchment paper overhang to lift the brownies from the pan, then slice into squares and enjoy.
how to serve Ultimate Slutty Brownies
These brownies are best served warm or at room temperature. You can enjoy them plain or with a scoop of vanilla ice cream on the side for a delicious dessert. They also make a great treat for gatherings or as part of a dessert platter.
how to store Ultimate Slutty Brownies
Store leftover brownies in an airtight container at room temperature for up to 3 days. If you want to keep them fresh for longer, you can store them in the refrigerator for up to a week. You can also freeze individual slices; just wrap them tightly in plastic wrap and place them in a freezer-safe container.
tips to make Ultimate Slutty Brownies
- Make sure your butter is softened for the cookie dough, as this helps create a smooth texture.
- Don’t overmix the brownie batter to keep it fudgy.
- Let the brownies cool completely before cutting to ensure clean slices.
- Feel free to add nuts or different types of chocolate chips for extra flavor!
variation
You can customize these brownies by using different flavors of cream-filled cookies instead of Oreos, such as peanut butter or mint Oreos. Additionally, using dark chocolate chips in the brownie layer can give it a richer taste.
FAQs
Q1: Can I use a different type of cookie instead of Oreos?
A1: Yes! You can use any cream-filled sandwich cookie you like for this recipe.
Q2: How can I make these brownies gluten-free?
A2: Substitute all-purpose flour with a gluten-free flour blend and ensure other ingredients are gluten-free.
Q3: What should I do if I don’t have parchment paper?
A3: You can grease the baking pan with butter or cooking spray instead, but this may make it harder to remove the brownies later.

Ultimate Slutty Brownies
Ingredients
For the Cookie Layer
- 1 cup unsalted butter, softened
- 1 cup granulated sugar
- 1 cup light brown sugar, packed
- 2 large eggs
- 2 tsp vanilla extract
- 2.5 cups all-purpose flour
- 1 tsp baking soda
- 0.5 tsp salt
- 2 cups semi-sweet chocolate chips
For the Oreo Layer
- 24 cookies Oreo cookies or enough to form an even layer in your pan
For the Brownie Layer
- 1 cup unsalted butter
- 8 oz semi-sweet chocolate, chopped
- 1.5 cups granulated sugar
- 1 cup light brown sugar, packed
- 4 large eggs
- 2 tsp vanilla extract
- 1 cup all-purpose flour
- 0.5 cup cocoa powder
- 0.5 tsp salt
Instructions
Preparation
- Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal. Lightly grease the parchment paper.
- In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until fluffy and smooth, about 2–3 minutes. Beat in the eggs one at a time, then add the vanilla extract.
- In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined. Fold in the chocolate chips. Spread the cookie dough evenly over the bottom of your prepared pan.
- Place a layer of Oreo cookies directly on top of the cookie dough, covering as much of the surface as possible.
Brownie Layer
- In a medium saucepan, melt the butter and chopped chocolate over low heat, stirring constantly until smooth. Remove from heat and allow it to cool slightly.
- In a large bowl, whisk together the granulated sugar, brown sugar, eggs, and vanilla extract. Slowly add the melted chocolate mixture, whisking continuously. Sift in the flour, cocoa powder, and salt, stirring until just combined.
- Pour the brownie batter over the Oreo layer, spreading it evenly to cover all the cookies. Smooth the top with a spatula.
- Bake in the preheated oven for 35–40 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Allow the brownies to cool completely in the pan for about 1 hour. For clean slices, refrigerate the brownies for an additional 30 minutes before cutting.
- Use the parchment paper overhang to lift the brownies from the pan, then slice into squares and enjoy.