Slutty Brownies


Total Time:

50 minutes



It’s all about Slutty Brownies today! Layers of cookie dough, Oreo’s and homemade brownie batter = it’s perfection. Keep reading for all the tips and tricks 🙂

A few weeks ago I was perusing the interwebs, mainly pinterest, because it’s my latest obsession and I spend an inordinate amount of time pinning things that I want to eat, and things that I want at my wedding. I’m not quite sure how people planned weddings before Pinterest. It’s kinda the greatest invention of all times. But while I was knee deep in my wedding pinning extravaganza, I stumbled across something called Slutty Brownies.

The Original Homemade Slutty Brownies from (@whatsgabycookin)

Clearly these caught my attention immediately. They are the brilliant creation of The Londoner and they are basically it’s a SUPER POWERED brownie made with layers of cookie dough, oreo cookies, and then a rich and decadent brownie layer. They are EVERYTHING. Seeing as how I’m a private chef, I made them for every single person in my life, including Jessica Simpson who is my current private chef client, and when asked on Leno what made them slutty she replied.. it’s because a lot of things go into them. GENIUS.

They are decadent. One small bite will be enough to satisfy any sweet tooth but why stop there!

Homemade Slutty Brownies from (@whatsgabycookin)

You could easily make these with box mix, which is what the original recipe I found calls for, but I took it one step further and made these with my all time favorite rich chocolate-y brownie recipe and my favorite chocolate chip cookie dough recipe. The Oreo in the middle may seem slightly out of place because you might think it’s going to be this crunchy layer between two super soft and chewy layers, but let me reassure you that it’s not. The Oreo kind of soaks up a bit of moisture from the brownie batter and cookie dough and just adds that extra bit of fabulousness.

Slutty Brownies from (@whatsgabycookin)

Make Slutty Brownies immediately.

They’ll change your life. The first 2 times I made these, I cut them right away to serve them and they kinda fell apart a bit since they were still crazy warm, and that’s totally one way to go. If you’re serving them fresh out of the oven, add a scoop of vanilla ice cream just for another layer of decadence and serve away. If you’re going to let them sit for a few hours, you’ll get a super gorgeous cut square and can grab it and go. Either way, they are awesome.


  • This is the pan I bake these in – it’s a 9×9 square pan from Amazon and it’s the best. It’s a non-stick square pan – which is what you need. A glass pan or a pan of another size won’t yield the same results as the photos here.
  • Cool the brownies once they come out of the oven for at least 1 hour before slicing and serving if you want perfect square pieces.
  • You can use any kind of Oreos you want – double stuffed, regular, flavored, birthday cake, red velvet etc
  • IF you use a box mix for the brownie layer, you won’t want to use the entire batter as it yields more than my homemade brownie recipe. You just want to have enough brownie recipe to cover the oreos on the top layer.
  • Here’s a SLEW of savory recipes to make alongside these treats!
Slutty Brownies Recipe

Slutty Brownies

5 from 19 votes
Prep Time 10 mins
Cook Time 40 mins
Total Time 50 mins
Course Dessert
Cuisine American
Servings 16 people


For the Brownie layer:

  • 10 tablespoon unsalted butter
  • 1 1/4 cups white sugar
  • 3/4 cup cocoa powder
  • 1/2 teaspoon kosher salt
  • 2 teaspoons vanilla extract
  • 2 large eggs
  • 1/2 cup flour

For the Oreo layer:

  • 1 package of Oreo regular stuffed or double stuffed

For the Cookie Dough layer:

  • 1/2 cup unsalted butter at room temp
  • 1/4 cup brown sugar
  • 3/4 cup white sugar
  • 1 egg
  • 1 1/4 teaspoons vanilla extract
  • 1 1/4 cups flour
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1 cup semi-sweet chocolate chips


For the Brownie layer:

  • In a medium sauce pan, melt the butter over medium high heat. Add the sugar and cocoa powder once the butter is melted. Whisk to combine and remove from heat. Add the salt, vanilla and eggs and continuously whisk until the eggs are combined. Add the flour and continue to mix. Set batter aside.

For the Cookie Dough layer:

  • Cream together the butter and sugars in a mixer. Add the egg and vanilla, making sure to scrape down the sides of the mixing bowl. Add the flour, salt, baking soda and baking powder and mix on low until everything is incorporated. Fold in the chocolate chips. Set dough aside.


  • Pre-heat the oven to 350 degrees F.
  • Line the bottom of a 9x9 baking pan with tin foil and then spray the tin foil with a layer of baking spray.
  • Layer the cookie dough on the bottom of a 9x9 baking pan, pressing down to form the bottom of the slutty brownies.
  • Layer as many oreos that will fit on top of the cookie dough. No need to overlap. One single layer will do.
  • Pour the brownie batter on top of the oreo layer and make sure it's evenly layers on top.
  • Bake for 30-40 minutes. Test with a knife to see if the center is done. If the knife comes out clean, let the brownies rest for at least 2 hours before serving. If the knife comes out with batter still on it, allow the brownies to bake about 5 minutes more. Slice and serve.

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Recipe Rating


  1. Sofia

    5 stars
    It is delicious, but if you think it’s too much i would take out the oreos because once you’ve eaten it maybe you’ll realize that’s heavy, like you feel too full

  2. Kirstin

    Could I do this in an 11×7 pan instead of 9×9? Really excited to try this recipe out.

    • Vickie

      Consider “shrinking” your 11×7. Line the pan shorter by a couple of inches, then fill the gap with dried beans or rice to hold that end of your foil liner upright.

  3. Kristen A Berry

    5 stars
    Hi Gaby,

    I need to make these delicious brownies for a crowd. Is there a way I can make them in a 9X13 pan or should I just do 2 batches?

    Many thanks! I hope you are enjoying your vacation!

    Kristen Berry

  4. Kaydee

    Hi. Can I make this using a 7 inch tin? If so, do I halve the recipe and is the baking time affected?

    • Gaby

      haven’t tested it that way so I can’t tell you with 100% certainty how you should adjust the recipe but the 9×9 yields the best results

    • Gaby

      yes but the quantity of a box mix and a pre-made cookie dough is different so the baking time will be longer

  5. Samantha Freed

    Hi Gaby! I can’t wait to make these 🙂 I’m a horrible baker, but am going to attempt this! I’m going to buy the dish you recommended. Can I use store bought cookie dough/brownie mix? If so, how much should I buy? Appreciate all your help! Happy Holidays!

    • Gaby

      if you use store bought – that messes up the ratios since those doughs are large quantities than what my recipe calls for. I’d just follow the one here to a T for best results

  6. Anna

    Hi! Can I use a ceramic pan instead of nonstick? Should I adjust cook temp/time?

    • Gaby

      that’s no problem!! just glass is an issue when baking

  7. Ellen

    Your slutty brownies are my absolute favourite! My co-workers LOVE when I bring them in to work! They’re never around long enough in my house, but others have asked how long they last for? Both in and out the freezer please 🙂

  8. Salama

    5 stars
    This recipe was a hit at my picnic on the beach!! Everybody loved the brownies. Also, the recipe was pretty easy to follow. So, thank you very much

  9. Laura Russell

    My son wanted these for his birthday celebration! We live at high altitude so I had to make just a few alterations to the instructions. They turned out perfect! I added 1 tsp of water with the flour to the brownie mix. To the cookie mix, I melted the butter before adding it and added 2 tsp of water with the flour to the cookie mix. They turned out great. Be very careful not to overbake!

  10. Poe

    Can you confirm that you mean to instruct us to let the brownies cool for two hours, ans if after that it’s still not cooked, then bake 5 more minutes? Or are the two sentences out of order? I’ve never tried to bake something after fully cooling it down before so wanted to clarify!

    If the knife comes out clean, let the brownies rest for at least 2 hours before serving. If the knife comes out with batter still on it, allow the brownies to bake about 5 minutes more.”

    • Gaby

      if the knife comes out not clean after baking, put in for another 5 minutes and then bake!

    • Emma

      Hi Gaby, these look amazing! I was wanting to make these in the UK but the measurements are different here, have you by any chance got the measurements for grams?
      Thank you!

  11. Kate

    Made these for my husband for Father’s Day which and they were great and it was fun but also pretty awkward answering the thousands of questions about “slutty” from my 8 year old daughter.

  12. Jessie

    5 stars
    These are too good!! I made them in a 9×13 (against the instructions, I know) and cooked for the full 40 mins and they came out great. Your recipes are the best!!