These Slutty Brownies are everything you could want them to be ... and more!
Have you ever had Slutty Brownies? If you have, you know what the hype is all about. If not... boy are you in for a treat!
Chocolate chip cookies + brownies + Oreos = one delicious and decadent food baby
These brownies are amazing. There's no doubt about that. They're a mash-up of some classic treats (helloooo chocolate chip cookies, brownies, and Oreos!). Somehow the whole is greater than the sum of its delicious parts.
How? IDK, but it's true.
Make them and you will not be sorry. Neither will your friends, family, and/or coworkers with whom you share. I know that mine were quite pleased.
What inspired these crazy bars?
By now, Slutty Brownies are a pretty well-known dessert phenomenon. Right? I think I might have first seen them on What's Gaby Cooking? (side note: she has a Slutty Brownie Layer Cake, too!) Doesn't matter, really. They're all over the Internet.
I was attracted to them because, first of all, they look insanely good. But they also reminded me of something that I used to bake while I was in college: the "Cookie Brownie."
Basically, I'd take a box of brownie mix, prepare it according to the directions on the package, and spread it into an 8x8-inch pan. Next, I'd mix up a bag of pre-measured chocolate chip cookie dough and drop globs of it throughout the brownie batter. Bake it up, and you have the "Cookie Brownie"!
To be honest, they were pretty good (pre-made mix and all). I'd take them with me when I visited Sean on the weekends. His roommates were pretty pleased about it.
Since that time, I've stepped up my game a little bit. This homemade version, with the addition of Oreos, is truly next-level.
But... what's with the name?
To be honest, I have no idea. I didn't come up with the name.
It's not the best but... I'm rolling with it because these bars are crazy delicious.

Need other brownies/bars/blondies in your life? Yes, yes you do.
- Simple Fudge Brownies are a classic
- Triple Chocolate Raspberry Brownies are pretty and delicious
- Pumpkin Chocolate Chip Blondies are 10/10 year round, not just during the Fall
- Salted Dark Chocolate Dulce de Leche Blondies... need I say more?
So how do I put these Slutty Brownies together?
Basically what you'll do is whip up the chocolate chip cookie dough layer and press it into the bottom of a 9x13-inch baking dish. Lay some (or a lot of) Oreos on top of the cookie dough in an even layer.
I like to use Double Stuf Oreos, but I'm not here to tell you how to live your life.
Mix up the thick and fudgy brownie batter and pour it over top of the Oreos and and cookie dough layer. Smooth it all out with a spatula.
Bake, wait as long as possible for them to cool, cut, and eat!
✨ Recipe

Slutty Brownies
Ingredients
For the cookie layer
- 2 ½ cups all-purpose flour
- 1 teaspoon salt
- 1 teaspoon baking soda
- 1 teaspoon baking powder
- 16 tablespoon unsalted butter softened
- ½ cup brown sugar
- ½ cup granulated sugar
- 2 large eggs
- 2 ½ teaspoon vanilla extract
- 2 cups chocolate chips
- 24 Double Stuffed Oreo cookies
For the brownie layer
- 4 eggs
- 1 ¼ cups cocoa powder
- 1 teaspoon salt
- 1 teaspoon baking powder
- 1 tbs vanilla extract
- 16 tablespoon unsalted butter melted and cooled slightly
- 2 ¼ cups granulated sugar
- 1 ½ cups all-purpose flour
Instructions
- Preheat the oven to 350 degrees F. Line a 9x13-inch baking pan with foil. Spray the foil with cooking spray. Set it aside.
To make the cookie layer
- In a medium bowl, whisk together the flour, salt, baking soda, and baking powder. Set aside.
- In the bowl of a stand mixer, cream the butter and sugars together until light and fluffy. Add the eggs, one at a time, mixing thoroughly between additions, followed by the vanilla extract.
- Add the dry ingredients, little by little, to the wet. Scrape down the sides of the bowl as necessary. Mix in the chocolate chips.
- Press the cookie dough into the bottom of the prepared baking dish in an even layer. Top with the Oreo cookies, pressing them into the dough slightly.
To make the brownie layer
- Mix the eggs, cocoa powder, salt, baking powder, and vanilla extract together in a medium bowl.
- Add the granulated sugar to the melted butter and stir until combined. Add the butter/sugar to the cocoa/egg mixture and stir until combined.
- Add the flour, stirring until the flour just disappears and everything is smooth. Spread the brownie batter over the Oreo and chocolate chip cookie layers.
- Bake for 30-35 minutes, or until a toothpick comes out clean when inserted into the center. Cool completely before cutting into squares.
Disclaimer: Nutritional information is a generated estimate and is not guaranteed to be accurate.
What gear should you have on hand?
- 9x13-inch pan (I'm a big Pyrex fan)
- Mixing bowls
- Spatulas
Pin this ridic recipe for later!

Rachel
Would substituting a box brownie mix work ?
laurenpacek
Hi, Rachel. Sure! My only concern is that the brownie layer may be very thin since (and I could be wrong about this) most boxed mixes are usually baked in a 9x9 or 8x8 pan, and this recipe is in a 9x13. But beyond that, it should work out just fine!
Katie Lepine
The brownie layer ended up being super thick. Is that normal?
laurenpacek
Thick like "the brownies were several inches thicker than the cookie layer" or thick like "it was really thick and hard to stir"? If the latter, then yes. It's a v thick batter.
Katie Lepine
Haha, good clarification. Thick, like hard to stir. Okay, that’s a relief! I guess it makes sense because a looser brownie batter would take more like 45-60 minutes to bake and that’s too long for the cookie layer. I added some Nutella to the brownie batter, so we’ll see how they turn out! Fingers crossed.
laurenpacek
Yeah, it's a bit of a forearm workout to stir it, isn't it? The addition of Nutella sounds like it will be delicious!
t
I tried this in a 9x13 pan & was afraid it would run over because the choc chip cookie layer was quite thick. I moved it into my ginormous 13x15 pyrex & it worked out much better.
laurenpacek
Glad it worked out for you that way! I didn't know that Pyrex made a pan in that size, but now I'm thinking I should pick one up, too...
Andrea Burke
they turned out great once I looked back at the brownie recipe you referenced. When you transposed the ingredients for the brownies the granulated sugar didn't make the list. I made mine in cup cake tins and it turned out phenomenal for people who like edges. Thank you
ANerdCooks
Eek, thank you for letting me know! I'll fix that ASAP.
And I'm so glad that they turned out well! The edges are my favorite part, so I'll definitely have to make them in cupcake tins =)
Sid
They look divine! Any exception to the eggs though as I am a vegetarian. 🙂
Sid
ANerdCooks
Hi Sid! Thank you =D Hmm... I have never tried it, but I wonder if you couldn't use a chia egg or some other sort of egg substitute?
Kelsey
Wow! Those look crazy good!
ANerdCooks
Thank you, Kelsey!