Make this decadent dessert from scratch! With a cookie dough base, Oreos in the middle, and brownie batter on top, Slutty Brownies are next-level delicious.
Love brownies? Oreos? Chocolate chip cookies? This recipe smashes them all together in one glorious pan of dessert chaos.
They’re a hit every time I bring them to a party or gathering. I usually make them the night before since they’re super low-effort and always turn out great.
I like switching up the Oreo flavors depending on the season or what I have in the pantry. Go wild with it!
Into chocolate? Try my Brownie Bottom Cheesecake, or my Fudgy Mini Brownies, , or my Boston Cream Poke Cake too!
This recipe first appeared at Yellow Bliss Road where I am a contributor.
Step-by-step photos and instructions are below, but you can jump right to the recipe card if you wish!
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What are Slutty Brownies?
A dreamy decadent dessert, beginning with a cookie dough base, topped with a layer of Oreos and then brownie batter poured over the top. Baked, cooled, sliced and devoured.
For a nostalgia hit without the cookie layers, these cosmic brownies are a fun swap.
How did they get their name?
I did a little research and I found that they were originally named “Ultimate Chocolate Chip Cookie n’ Oreo Fudge Brownie Bar” by Kevin and Amanda, and then someone else made them… and they were “oh so easy, and more than a little bit filthy”.
So there you have it.
Can I use packaged brownie mix and cookie dough?
Absolutely, you can and should if that’s your jam. This recipe is supposed to be easy!
If you don’t have boxed ingredients, making the layers from scratch is also pretty easy. I sometimes make both the brownie mix and cookie dough from scratch, other times – I’ll make just the cookie dough, or just the brownie batter and use storebought box mix options for the other layer. The choice is yours!
I like to try my Homemade Brownie Mix, and my Chocolate Chip Cookie Recipe to make the components!
What kind of Oreo to use?
Use any kind of Oreo you enjoy (I think the birthday cake ones would be epic). Double stuffed will get you a more defined white frosting piece in the middle.
This recipe is great for holidays – St Patrick’s Day, use mint Oreos. Halloween – use the pumpkin spice ones!
Want some other delicious baked goods? How about these Crispy, Chewy Oatmeal Cookies?
How to make Slutty Brownies
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This next part is only a photo tutorial of the recipe steps. The full list of ingredients, quantities and instructions can be found in the printable recipe card below.
The layers:
- Chocolate Chip Cookie Layer – recipe below.,
- Oreos – pick your favorite kind!!
- Brownie Layer- use a boxed brownie mix, prepared as directed (or use my homemade brownie mix).
Make the Chocolate Chip Cookie Dough
Gather your ingredients! Combine the flour, baking soda, and salt. Cream the butter and sugars until light and fluffy, then add the vanilla. Beat in the eggs one at a time. Add the flour mixture to the bowl, gradually and mix until well blended. Add the chocolate chips and stir.
Make the Brownie Batter
Assembly
- Preheat the oven to 350 degrees F. Grease a 9×13 pan with melted butter or cooking spray.
- Press the cookie dough into the bottom of the pan, then add the Oreos over the top (as many as you can fit!).
- Pour the brownie batter over the top of the oreos and spread out evenly.
- Bake at 350 for 35 -45 minutes (until a toothpick comes out clean).
- Let the brownies cool completely, cut into slices, devour.
Kylee’s Notes & FAQs
Freezing and Storing
In my house, these brownies are eaten immediately, so very little need for storage. If, however, your house practices better control – these brownies will keep about 5 days if kept in an airtight container.
You can freeze them if you’d prefer (wrap in parchment and store in a freezer bag – they’ll stay good for about 4 months).
Serving Suggestion
Not decadent enough? Eat warmed brownies with a scoop of vanilla ice cream on top, and drizzled with caramel sauce. YUM!
- Classic Chocolate Chip Cookies , A trusty, well‑loved cookie recipe that’s crispy‑chewy perfection. Bonus: freezer‑friendly, adaptable, and use‑whatever‑you‑have pantry style.
- Brownie Batter Dip. All the flavor of brownie batter, whipped into a dreamy dip you can scoop with your favorite dippers – made with just 4 ingredients and totally no‑bake.
- Oreo Dirt Pudding Cups. A layered, nostalgic dessert that’s easy for parties or individual servings.
- Chocolate Chip Cookie Dough Dip. A dreamy, no‑bake dessert dip that tastes just like cookie dough but contains no eggs and is totally safe for snacking or dipping with graham crackers, pretzels, fruit, and more.
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Slutty Brownies Recipe (from scratch)
Ingredients
Cookie layer (if not using packaged)
- 2 1/4 cups all purpose flour
- 1 teaspoon baking soda
- 1 teaspoon salt
- 1 cup butter (softened)
- 3/4 cup white sugar
- 3/4 cup dark brown sugar (packed)
- 1 teaspoon vanilla extract
- 2 large eggs
- 12 ounces chocolate chips
Brownie layer
- 1 box brownie mix (prepared as directed (but not baked))
Oreo layer
- 24 Oreo cookies
Directions
Get prepped
- Preheat the oven to 350℉. Grease a 9×13 pan with melted butter or cooking spray.
Make the cookie layer
- In a bowl, mix together 2 1/4 cups all purpose flour, 1 teaspoon baking soda, and 1 teaspoon salt. Set aside.
- In a stand mixer or a large bowl with a hand mixer, cream the 1 cup butter, 3/4 cup white sugar, and 3/4 cup dark brown sugar until fluffy. Add the 1 teaspoon vanilla extract and mix well.
- Add 2 large eggs one at a time, beating after each addition.
- Reduce speed and gradually mix in the flour mixture until just combined.
- Stir in 12 ounces chocolate chips.
Make the brownie layer
- Prepare 1 box brownie mix following the instructions on the box, but do not bake it yet.
Assemble the brownies
- Press the cookie dough into the bottom of the greased pan.
- Place the 24 Oreo cookies in a single layer over the cookie dough, covering as much of the surface as possible.
- Pour the brownie batter over the top and smooth it out evenly.
Bake
- Bake for 35 to 45 minutes, or until a toothpick inserted in the center comes out clean.
- Let cool completely before slicing.
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Nutrition Facts
Disclaimer
Nutritional information is an estimate and provided to you as a courtesy. You should calculate the nutritional information with the actual ingredients used in your recipe using your preferred nutrition calculator.
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