Slutty Brownies

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

Updating this one from the archives because we have new VIDEO!!!

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 I was cooking for at the time, 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 chocolatly 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

Yield: 1 9x9 brownie pan

Serving Size: 16 brownies per recipe

Slutty Brownies


    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:
  1. 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.
  2. For the Cookie Dough layer:
  3. 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.
  4. Assembly:
  5. Pre-heat the oven to 350 degrees F.
  6. Line the bottom of a 9x9 baking pan with tin foil and then spray the tin foil with a layer of baking spray.
  7. Layer the cookie dough on the bottom of a 9x9 baking pan, pressing down to form the bottom of the slutty brownies.
  8. Layer as many oreos that will fit on top of the cookie dough. No need to overlap. One single layer will do.
  9. Pour the brownie batter on top of the oreo layer and make sure it's evenly layers on top.
  10. 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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  1. Hi Gaby!
    I loved the recipe, but i couldn´t get it right! The brownie layer ended up at the bottom of it.
    Did i do something wrong?!

    Love your blog and I´ll keep looking for your recipes.


    1. Hi Javiera! That is so odd that the brownie layer ended up on the bottom. Can you walk me through your process and maybe I can figure out what happened?


  2. Gaby,

    I had a similar issue where some of the cookie dough rose through the brownie mixture to the top but nobody had an issue with that. I’m a new blogger and I blogged about your brownies. I hope this is okay.


  3. Hey Gaby, I love your blog and I love this recipe BUT I wanted to let you know The Londoner did not create these brownies, she copied the recipe and claimed she created it 🙁 The actual original recipe came from the wonderful Kevin and Amanda blog (check the dates and the recipe here ( Just thought you’d want to credit the real creator of these naughty treats as they truly deserve the credit. Sarah xo

    1. Hi Sarah, So glad you’ve also noticed that The Londoner blogger stole the recipe from Kevin and Amanda, she’s getting tonnes of opportunities from having stolen someone else’s idea its just not on, Gaby please credit the correct inventors!

  4. I need a Teacher’s gift for teacher appreciation , My daughters Teacher LOVES LOVES LOVES chocolate, so …..I was thinking maybe slutty brownies baked in a jar. Do you think this would work?

  5. I made these today after finding the recipe yesterday and longing for them! Have made 3 batches; I chose to make the cookie base chocolate as well( Just to be sure they would have enough flavour!)
    Two batches are heading out the door with my teens…. never to be seen again (the brownies that is)

    They are expensive and rich and I would not begin to calculate the calorie content( as far to alarming no doubt)

    Have a feeling I will be baking them again and again…..

    PS One of our dogs is called Oreo but he’ll not be getting his paws on them.

  6. As a brownieholic, any brownie recipe I find becomes fair game and this DEFINITELY falls within the meaning of “fair”. It is bookmarked, pinned and shared! Will I make them? You betcha!

  7. Hey Gaby…love your blog! I made these yesterday and the cookie layer was way over cooked, tasted burnt. Any suggestions? The brownie was fudgy as it should be- not overcooked.

  8. Loved these and so did everyone at work. Though next time I’ll halve the salt in both the dough and brownie mixture.

  9. I made these today for a surprise thank you party this evening. Can’t wait to taste them!!

  10. Oh Gaby! These were so good. I followed your recipe closely and they were the best cookie/brownie/thing I have ever tried. I loved them, my family and friends loved them too. Only problem – I keep being asked to make more! 😉

  11. hi!

    may i know how many grams is 1 cup of butter? i tried making this afternoon (with 226g butter which i convert online) and it was all good except for the cooking dough which was too soft & oily, it didnt really set well. i bake for as long as 50mins+15mins more but it’s still the same.

    i used a 10×10 pan & i actually use up all e dough instead of half, is that the problem? or 226g butter is too much?

    pls advise! thank you.
    btw the brownies is still delicious! 😀

    1. Hi Stefani – thats the right conversion for the butter so 226 is good to go! Did you melt the butter? That could have make it a little oily. And if you use all the cookie dough, that will definitely affect the baking time. Do you have a smaller 9x9x9 pan? It really makes a difference in baking times depending on the pan size. Hope this helps!

  12. Hi Gaby,

    I’m in a time crunch — could I use a tube of cookie dough and a box of brownie mix? Can’t wait to try. Thanks!

  13. I made these recently and they came out really yummy. I did make a few revisions though. I used a combination of white and light brown sugar with the brownies and added melted chocolate in there as well. (Just because I wanted a really moist, fudgy brownie. Plus I really wanted a deeper chocolate flavor) I also added grated chocolate to the cookie dough (Yup, chocolate makes everything better) and walnuts! These were so sinfully delicious! Even before they were baked I can already tell they’d turn out really well. Thanks so much!! Everyone loved them! Next time, I’m gonna try a cream cheese filling instead of Oreos! 😉

    1. Wow! Maia, I love the way you think! Chocolate makes everything better and there is no such thing as enough…am going to try it your way…as soon as the temperature drops below 70 degrees or so…(or you send me some out of pity…LOL).

  14. Okay I cannot stop laughing at the name. I mean I fell on the floor and rolled around holding my side from all the laughing. They look wicked good, which seems appropriate given the name.

  15. Why the foil lining the pan? Why not just butter the heck out of it before pressing in the cookie dough? I’ve been wondering that. I plan to bake these very soon! 😉

  16. I currently have a pan of these bad boys in the oven (can’t wait!) and am I curious about the other half of the cookie dough… how long do I need to bake the cookies?

      1. Gaby,
        I took the brownies (and cookies) to a BBQ and I’ve never seen a pan disappear so quickly. I will definitely be making these again. Thanks!

  17. OMG im in the military and the only problem i see with the brownies is….. How the heck am i gonna fit into my uniform!… They look addictive i cant wait to try them and if it get fat ….. your coming to work out with me righ? ..HAHA

  18. OMG. I am speachless. Good thing this is online, because I’m not fingerless, just speachless.
    I’m also drooling, just a little.
    I cannot wait to try these. They may just be perfection.
    Thanks for the recipe for the brownie’s, I’ve had bad luck with homemade brownies.

  19. Tomorrow I am doing a make a wish foundation wish for a girl who has spent the last 6 years in hospitals. Her wish was to have her birthday party at the club I cook at. The cake she asked for was brownies. Me being the way I am wanted to do something less traditional. So to my satisfaction saw this recipe and decided that it would be perfect. I hope I was right. The chocolate I am using is a godiva chocolate. Wish me luck.

  20. If I need these for Saturday morning but can’t make them Friday night, will they keep well if I make them on Thursday?


  21. Oh, yes! These are the sluttiest brownies ever. Better than Better Than Sex cake even! My daughter introduced them to me and I bout lost my mind! As I am diabetic I immediately took a hit of quick acting insulin and another brownie! OMG! Our local store had BOGO free Oreos that week and I got 12 packages! For future use of course! Please try the Mint Oreos for a wonderfully different taste! I ate mine with Mint Chocolate Chip ice cream! Decadent!

  22. Dear Gaby. You are my hero. My friends and I LOVED these. We ate almost an entire tray. Thank you so much.

  23. Hi Gaby, I made this brownies but I had a small problems, as some people already mention it here.
    Everything was perfect and following your instructions until I place mold on the oven, 3 layers all in place.
    Once I finished cooking it, I saw that something was wrong, I was able to see parts of the cookie dough on the surface. Even more, when I cut it I saw that also part of the brownie layer ended up at the botom and that the oreo cokies were eveywhere.
    The only thing that I did different from the recipe was that I used a Silicone mold instead of a cooking pan.
    Could it be that because of the silicone mold I got that result?
    Thanks and by the way, despite it was a mess, they were delicious!

    1. Hi!

      I don’t think the mold has anything to do with it… but as far as the cookie dough and brownie layers, occasionally the cookie dough around the edges will creep up to the top and peak out a bit – but I’ve never seen the brownie layer sink to the bottom. Where the parts of the cookie dough you saw on top near the edges of your mold? Let me know and I’ll help get to the bottom of this 🙂

        1. when I make these the last 5min I put marshmallows and Carmel, then when I take them out of the oven I put chocolate chips. Yummmmmy

  24. gaby, pleae tell me if i can put the nestles cookie dough thern a layer of oreos and a box of betty crocker triple fudge br4ownie mix and bake it in the oven for the time the brownies are cooked maybe 40 minutes. thanks so much.

  25. It should be criminal to google “brownie recipe” and have this come up as the 8th entry. I chose brownies for dessert tonight because I knew I had all the ingredients on hand until I came across this recipe. A quick run to the store for oreos, ice cream, and chocolate chips and I am whipping up these. I am currently taste testing the brownie and its still a bit too warm. I am thinking this brownie is probably best served at room temp or even cold. Still yummy though…thanks for sharing! Next time I might try this with nutter butters!

  26. Question – How doughy should the bottom layer be? When I made these the cookie dough layer seemed undercooked, but the brownie layer was done. I was using a glass pan. Also, I have read comments about half the cookie dough? The recipe does not say anything about using half the cookie dough.

    1. Hi Alexa – what kind of baking dish did you use? glass? Did the brownie recipe cook? Let me know and I’ll walk ya through it as best as I can!

  27. I just taste tested them! Ooooh they are so delicious!!! I need to hide them from my family or they’ll be gone by tomorrow, thanks for the recipe 🙂

  28. I am baking this at this very moment and the cookie dough has burst from under the brownie mix and is spilling over the sides! WHY!

      1. This happened to me, too! Minus the spilling over the sides. I used a 9x9x9 pan. My best educated guess is we added too much of a leavening agent like the flour or baking powder. Maybe we measured those ingredients wrong? Either way, it still turned out delicious! It just looked a little funky lol

  29. I made these last week for a party I went to because I wanted to test them out on a big group of people and get some feedback. I’ll admit that although I have a major sweet-tooth, I was a little scared they’d be too rich. I was pleasantly surprised. First off, they’re easy and fun to make; making all the batter from the recipe took under an hour, and they didn’t take too long to bake. Secondly, they taste AMAZING. They’re not overpowering at all, instead they’re the best dessert bar I’ve ever had (and I’ve had quite a few, lol). They were a huge hit at the party; everyone who tried one came back for more and the pan was empty long before the party was over. Thanks so much for sharing this awesome recipe, I’ll definitely make these again and again (and again). 🙂

  30. Just pulled my first batch outta the oven n completly in love with the smell all over the house!! Brownies look good but cookie dough looks undercooked a bit… Im assuming its meant to be undercooked? Either way a tub of vanilla ice cream n hot fudge are calling out for my baking flop lol… Maybe i flip the layers next time

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