Slutty Brownies Recipe (Easy & Made From Scratch)

August 16, 2026

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These Slutty Brownies combine three irresistible layers: homemade chocolate chip cookie dough, Oreo cookies, and a rich, fudgy brownie layer. Everything is made from scratch, so there’s no boxed brownie mix or store-bought cookie dough needed.

Slutty brownies with ice cream and nuts.

For me, the brownie layer is the hero of this recipe. It needs to stay fudgy, chewy, and deeply chocolatey to balance the buttery cookie dough and Oreo center. Put all three together, and you get thick, decadent brownies with a different texture in every layer.

Why This Slutty Brownies Recipe Works

The secret is getting all three layers right.

The chocolate chip cookie base is buttery and chewy, while the Oreos in the middle soften slightly as the brownies bake. On top is a fudgy homemade brownie layer made with cocoa powder and semi-sweet chocolate chips for a deeper chocolate flavor.

Because both the cookie dough and brownie batter are homemade, you get thick, chewy layers instead of relying on packaged mixes—and you can control the texture of the finished brownies.

Ingredients That Matter

You’ll find the exact measurements in the recipe card below, but a few ingredients make a real difference in these brownies.

Walnuts: I add them to the brownie layer for extra texture, but you can leave them out if you prefer.
Unsalted butter: I prefer unsalted butter so I can control the amount of salt in both the cookie and brownie layers.
Semi-sweet chocolate chips: Add richness to the brownie batter and give the cookie layer pockets of melted chocolate.
Unsweetened cocoa powder: Use good-quality baking cocoa. Since chocolate is such a big part of this recipe, the flavor of the cocoa really shows.
Oreo cookies: These create the middle layer and soften slightly between the cookie dough and brownie batter as they bake.

How to Make Slutty Brownies

Beat the butter with the brown and white sugars until fluffy. Add the egg and vanilla and mix well. Add the flour, baking powder, and salt, then gently mix until combined. Fold in the chocolate chips.

Spread the cookie dough evenly in a 9×9-inch pan lined with parchment paper.

2. Add the Oreo Layer

Arrange the Oreo cookies in a single layer over the cookie dough. Refrigerate the pan for 15 minutes while you prepare the brownie batter.

3. Make the Brownie Batter

In a saucepan over medium heat, melt the butter, sugars, and semi-sweet chocolate chips together. Remove from the heat and stir for about 2 minutes to let the mixture cool slightly.

Add the vanilla and eggs and whisk until combined. Gently mix in the remaining brownie ingredients, then fold in the walnuts.

4. Assemble and Bake

Pour the brownie batter over the Oreos and spread it evenly to cover them completely.

Bake until the brownie layer is set but still fudgy and a toothpick inserted in the center comes out with a few moist crumbs rather than wet batter.

Let the brownies cool before slicing so the three layers hold together cleanly.

Steps to making chocolate chip cookie dough.

How Long to Bake Slutty Brownies

Bake the brownies at the temperature given in the recipe card until the top is set and a toothpick inserted in the center comes out with a few moist crumbs.

Avoid waiting for the toothpick to come out completely clean. The brownie layer should remain fudgy and chewy, and overbaking can also make the chocolate chip cookie layer too firm.

Once baked, let the brownies cool for at least 1 hour before cutting. They may be difficult to slice while warm, but once cooled, the three layers will hold together much better.

Tips for Fudgy, Gooey Slutty Brownies

Don’t overbake them. Remove the brownies when a toothpick comes out with a few moist crumbs. This keeps the brownie layer fudgy instead of cakey.
Let the chocolate mixture cool slightly. After melting the butter, sugars, and chocolate chips, stir for about 2 minutes before adding the eggs.
Chill the cookie and Oreo layers. Refrigerating them for about 15 minutes while you prepare the brownie batter helps keep the layers distinct.
Use a metal baking pan. I avoid glass and ceramic pans for this recipe because they retain heat longer and can make the cookie base too firm.
Let them cool before slicing. Give the brownies at least an hour so you can cut through all three layers without them falling apart.
For thicker brownies, use an 8×8-inch pan, but expect them to take longer to bake.

Slutty brownies cut in cubes. #chocolate

Easy Shortcuts and Variations

This recipe is made completely from scratch, but you can take a few shortcuts when you’re short on time.

Boxed brownie mix: You can use your favorite brownie mix instead of the homemade batter. Prepare it according to the package directions, but only use enough batter to cover the Oreo layer.
Ready-made cookie dough: Store-bought chocolate chip cookie dough can replace the homemade cookie layer.
Different Oreos: Try Double Stuf, chocolate, or another Oreo flavor you enjoy.
Add nuts: Walnuts work beautifully in the brownie layer, but pecans are another good option, or simply leave the nuts out.
Change the chocolate: Use milk, dark, or a combination of chocolate chips in the cookie dough.

close up shot of slutty brownies with chocolate sauce.

Frequently Asked Questions

What are Slutty Brownies?

Slutty brownies are three-layer dessert bars made with chocolate chip cookie dough on the bottom, Oreo cookies in the middle, and brownie batter on top. They’re sometimes described as Oreo cookie brownies or layered cookie brownies.

Why are they called Slutty Brownies?

The dessert was originally known online as the Ultimate Chocolate Chip Cookie n’ Oreo Fudge Brownie Bar. The shorter, cheekier name Slutty Brownies became popular later and stuck.

Can I make Slutty Brownies with brownie mix?

Yes. Although this recipe uses homemade brownie batter, you can use a boxed mix when you’re short on time. Just use enough prepared batter to cover the Oreo layer rather than automatically using the entire batch.

How do I know when Slutty Brownies are done?

Insert a toothpick into the brownie layer near the center. It should come out with a few moist crumbs but no wet batter. If it comes out completely clean, the brownies may already be more baked than you want for a fudgy texture.

Storing and Freezing Slutty Brownies

Let the brownies cool completely before storing them.

Room temperature: Keep in an airtight container for up to 2 days.
Refrigerator: Store for up to 1 week. Let them come closer to room temperature before serving if you prefer a softer, fudgier texture.
Freezer: Place the sliced brownies in a freezer-safe container or bag and freeze for up to 2 months.

To thaw, leave the brownies at room temperature for about 30 minutes. You can also warm a slice briefly and serve it with a scoop of vanilla ice cream.

eating from slutty brownies with a spoon.

⭐PLEASE RATE AND REVIEW

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