Slutty Brownies

A combination of soft, gooey brownies, chewy chocolate chip cookie dough, and a layer of crunchy chocolate Oreos, these head-turning slutty brownies epitomize "guilty pleasure"! Serve them with a scoop of vanilla ice cream or drizzled with chocolate sauce for the ultimate treat!

Best Slutty Brownies Recipe

Of all the brownie recipes out there, I have to say, slutty brownies might just take the crown as one of the most indulgent treats. What are slutty brownies, you ask? Imagine a layer of crunchy Oreos sandwiched between rich, fudgy brownie and gooey chocolate chip cookie dough. If that description alone doesn't have your mouth watering, I'm not sure what will!

Not only is it extremely delicious, but this unique three-layer dessert is incredibly easy to make. With the exception of the Oreos, everything in my recipe is 100% homemade. In other words, you will not need boxed brownie layers or frozen cookie dough as some recipes require. I also use the highest quality ingredients and techniques to give you the moistest, fudgiest brownie and the gooey, sweet chocolate chip cookie layer you will sink your teeth into!

Katalin's Take On Why These Brownies Are "Slutty"

First things first, you're probably wondering why are they called slutty brownies? There's no doubt that the name grabs attention, but while "slutty” might not typically carry a positive connotation, in this case, I have to say that the name couldn't be any more perfect! With three guilty pleasures packed into one treat, it sums up just how easy, irresistible, and indulgent they are!

But where did the name come from? The story is as simple as the dessert itself. These brownies were initially introduced by Kevin and Amanda as "Cookie Dough Oreo Brownies." However, the recipe took on its new name when The Londoner renamed it, calling the treat "oh so easy, and more than a little bit filthy." The cheeky description stuck, and the name quickly went viral, turning it into the unique and outrageously delicious dessert it is today.

Ready to find out for yourself what makes them so "slutty”? Let's dive in!

Prepare the Cookie Dough Layer

Before starting the recipe, ensure that your egg and butter (unsalted butter only to have complete control of the salt in the recipe) are at room temperature to emulsify correctly. To quickly bring your egg to room temperature, stick it in a bowl of hot water for five minutes. See my guide on softening butter quickly for tips on how to do so without using a microwave. 

Start by preheating your oven to 175°C / 350°F (without the fan). Then, lightly grease a 9-inch (23 cm) brownie pan with oil and line the bottom and sides with parchment paper.

With an electric hand mixer, cream the room-temperature butter with the sugar (both the granulated and brown sugars) for a few minutes until light and fluffy. Add the room-temperature egg and vanilla extract and continue whipping for about a minute.

Switch to a rubber spatula and sift the dry ingredients—all purpose flour, salt, and baking soda—into the wet mixture. Gently fold everything together until just combined, being careful not to overmix. Fold in the chocolate chips to finish the cookie dough.

Spread the dough evenly into the prepared pan, smoothing the top with an offset spatula. Lastly, arrange the Oreo cookies over the cookie dough layer. You should be able to fit about 16 full-size Oreos in the pan. Alternatively, you can use double-stuffed or mini Oreos.

Place the pan in the fridge while preparing the brownie batter for best results.

Prepare the Brownie Layer

Like the cookie dough layer, the brownie layer requires room temperature eggs and softened, unsalted butter.

Melt the unsalted butter and chocolate gently in a heatproof bowl placed over a pot of simmering water on low-medium heat. Alternatively, you can use a double-boiler or melt them in the microwave using a plastic bowl (do not use glass). See my guide, how to melt chocolate chips, for tips on how to do so effectively without scorching the chocolate.

In a separate bowl, use an electric hand mixer or stand mixer to whip the eggs and both types of sugar until the mixture becomes pale and fluffy, which should take about 5-7 minutes.

With the mixer on low speed, gradually add the melted butter and chocolate mixture to the egg and sugar mixture and mix just until combined.

Then, sift the all-purpose flour, salt, and cocoa powder into the wet mixture. Gently fold everything together using a rubber spatula, careful not to overmix.

Assemble & Bake

Pour the prepared brownie batter over the Oreo layer, using an offset spatula to spread it evenly.

Bake for approximately 35-40 minutes, or until the edges appear fully baked and the center remains slightly gooey but not raw. Be careful not to overbake. The brownies will continue to firm up as they cool.

Although it may be tempting to dive right in, to avoid a mess, let your slutty brownies to cool completely in the pan before cutting them into slices and serving.

Storing & Freezing

It is hard to imagine having leftovers of these slutty brownies! However, if you do, you can store them in an airtight container at room temperature for 2-3 days. 

To freeze sliced brownies, wait until they cool completely to room temperature, then wrap them tightly in parchment paper followed by aluminum foil. Place them in a zippered plastic bag and freeze them for up to three months. Thaw at room temperature.

For more tips, refer to my guide on how to store brownies.

Flavor Variations

Since this recipe is a combination of three desserts in one, there are countless ways that you can customize it!

Instead of chocolate chip cookie dough, you can try this recipe with sugar cookie dough or peanut butter cookie dough. You can also get creative with the chocolate chips you use. Instead of milk chocolate or dark chocolate, you can use white chocolate or even butterscotch chips.

Instead of regular Oreos, you can try it with different flavor varieties such as mint, vanilla birthday cake, or red velvet. Or you can swap them out for chocolate chip cookies!

You can enhance the chocolate flavor with freshly brewed coffee, as in my coffee brownies and espresso brownie recipes.

Fold crushed nuts into the brownie or cookie dough layer to enhance the texture and give your brownies a nutty flavor. This recipe would be incredible with my pecan brownies! If you have a nut allergy, you can add oats instead.

You can also completely change the regular brownies for my other brownie recipes. Imagine how "slutty” these brownies would taste with my triple chocolate brownies, Biscoff brownies, or tiramisu brownies!

Ingredient Substitutions

To make these brownies dairy-free, replace butter with margarine and substitute vegan chocolate for regular chocolate. Alternatively, you can use my dairy-free brownies. If you're looking for a butter-free version, my butter substitution guide offers great alternatives that maintain flavor and texture.

Try one of the replacements suggested in my egg substitution guide for an egg-free option. If you need gluten-free brownies, try one of the gluten-free options listed in my flour guide.

If you're short on time, you can opt for boxed brownie mix and pre-made cookie dough. However, keep in mind that even minor substitutions can impact the flavor and texture.

Expert Tips For Making Slutty Brownies

1. Always choose full-fat ingredients to ensure the best taste and texture. For the best flavor, choose European-style butter with an 82% fat content and a high-quality vanilla extract.
2. For the most delicious slutty brownies with a deep chocolate flavor, use high-quality, dark semi sweet chocolate chips (e.g., Callebaut or Lindt) and 100% unsweetened Dutch process cocoa powder.
3. Never skip the ½ teaspoon of salt in the recipe—it balances the sweetness and other flavors. Don't worry; you won't taste the salt in the final product!
4. If you prefer a softer, fudgier brownie, try underbaking them slightly. 
5. To make slicing your slutty brownies easy and picture-perfect, run your knife under hot water before cutting to prevent the chocolate from sticking.

What Equipment To Use

Accuracy is essential in baking to achieve the expected results, so always weigh your ingredients with a digital scale rather than relying on measuring cups. Likewise, use a digital oven thermometer to ensure your oven is at the correct baking temperature.

This recipe requires an electric hand mixer to whip the wet ingredients together. You will also need a rubber spatula to gently fold the dry ingredients and avoid overmixing.

You'll need a 9-inch (23 cm) square baking pan and an offset spatula to smooth the batter evenly once it's in the pan.

Try Some Of My Brownie Recipes

If you loved this easy slutty brownies recipe, you will want to try some of my other unique brownie recipes:

• Pumpkin Brownies
• Tiramisu Brownies
• Biscoff Brownies
• Lemon Brownies
• Matcha Brownies

For even more fun and crowd-pleasing desserts that will have everyone turning heads at the next gathering, see my roundup of 55+ Best Potluck Desserts That Will Make You The Most Popular Guest.

Have You Tried This Recipe?

Please leave a 5-star ⭐️⭐️⭐️⭐️⭐️ rating on the recipe card and consider leaving a comment as well!