Slutty brownies are three desserts in one pan: a chocolate chip cookie dough base, a layer of Double Stuf Oreos, and fudgy brownie batter on top. They look impressive, take about 20 minutes of hands-on time, and slice into 16 rich squares. The name is just a playful nod to how indulgent they are. This version bakes in a 9×9 inch pan.

What Are Slutty Brownies?
- Layer 1, cookie dough: a soft, chewy chocolate chip cookie base that bakes up golden at the edges.
- Layer 2, Oreos: a single layer of Double Stuf Oreos pressed into the dough for crunch and cream.
- Layer 3, brownie: a dense, fudgy batter poured over the top that seeps down and binds everything together.
Ingredients
Cookie dough layer
- 1/2 cup (115 g) unsalted butter, softened
- 1/2 cup (100 g) granulated sugar
- 1/2 cup (100 g) packed brown sugar
- 1 large egg
- 1 tsp vanilla extract
- 1 1/4 cups (155 g) all-purpose flour
- 1/2 tsp baking soda
- 1/2 tsp salt
- 1 cup (175 g) semi-sweet chocolate chips
Oreo layer
- 16 to 20 Double Stuf Oreos, whole
Brownie layer
- 1/2 cup (115 g) unsalted butter
- 1 cup (175 g) semi-sweet chocolate chips or chopped chocolate
- 3/4 cup (150 g) granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- 1/2 cup (65 g) all-purpose flour
- 1/4 cup (25 g) unsweetened cocoa powder
- 1/4 tsp salt
Prep: 20 minutes · Bake: 35 to 40 minutes · Cool: 2 hours · Makes: 16 squares
How to Make Slutty Brownies
- Prep the pan. Heat the oven to 350°F (175°C). Line a 9×9 inch pan with parchment, leaving an overhang on two sides so you can lift the brownies out.
- Make the cookie dough. Cream the butter and both sugars until smooth. Beat in the egg and vanilla. Stir in the flour, baking soda and salt, then fold in the chocolate chips. Press the dough evenly into the bottom of the pan, into the corners.
- Add the Oreos. Arrange the whole Oreos in a single snug layer on top of the dough, pressing them in gently.
- Make the brownie batter. Melt the butter and chocolate together in a saucepan over low heat, or in the microwave in 30-second bursts, stirring until smooth. Let it cool for a few minutes. Whisk in the sugar, eggs and vanilla, then stir in the flour, cocoa and salt just until combined. Do not overmix.
- Top and bake. Pour the batter over the Oreos and spread it to the edges, filling the gaps. Bake for 35 to 40 minutes, until a toothpick inserted in the brownie layer comes out with a few moist crumbs.
- Cool completely. Let the pan cool on a rack for at least 2 hours so the layers set. For the cleanest squares, chill for 30 minutes more and cut with a sharp knife wiped clean between slices.
Tips for Perfect Slutty Brownies
| Tip | Why it helps |
|---|---|
| Line the pan with parchment | Prevents sticking and lets you lift out the whole slab. |
| Press the dough firmly | A compact base holds the Oreos in place and bakes evenly. |
| Cool the melted chocolate | Hot chocolate can scramble the eggs and make the batter greasy. |
| Do not overmix the batter | Too much mixing makes brownies tough. |
| Cool completely before cutting | The layers need time to set, or the squares crumble. |
Variations
- Use seasonal Oreos, such as red for Christmas or orange for Halloween.
- Add peanut butter chips to the dough or drizzle caramel over the finished brownies.
- Scatter mini marshmallows on top for the last 5 minutes of baking, for a s’mores twist.
Serve warm with a scoop of ice cream, or see more ideas in our brownie ice cream recipes. If you like layered bars, try our rocky road bars or chocolate cheesecake mousse cups.
Storage
Keep the brownies in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. To freeze, cut into squares, wrap them individually or layer them between parchment in a freezer container, and freeze for up to 3 months. Thaw at room temperature.
Nutrition (Estimate)
Per square, roughly: 450 calories, 25 g fat, 55 g carbohydrates, 5 g protein, 2 g fiber and 30 g sugar. These are estimates and vary with the ingredients you use.
FAQs
Can I make the cookie dough layer ahead?
Yes. Prepare the dough up to 24 hours in advance, cover it and refrigerate it. Let it soften slightly at room temperature so it presses easily into the pan.
Are slutty brownies gluten-free?
Not as written, because they use all-purpose flour and Oreos. You can use a 1:1 gluten-free flour blend and gluten-free sandwich cookies to adapt them.
How do I store slutty brownies?
Keep them in an airtight container for 3 days at room temperature or up to a week in the refrigerator. They also freeze well for up to 3 months.
Can I use a boxed brownie mix?
Yes. Prepare one 18 oz box of brownie mix as directed and use it in place of the homemade brownie layer. Bake until a toothpick shows moist crumbs, which may take a bit longer in the thicker pan.
Final Thoughts
Cookie dough, Oreos and brownie batter in one pan make a dessert that disappears fast. Let the pan cool fully before slicing, and keep a few squares for yourself.
