Slutty Brownies!
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Chocolate chip cookie base, Oreos, and gooey chocolate brownie… all in one = slutty brownies!
Slutty brownies
This idea came about a good while ago, and personally I first saw the idea from Rosie Londoner. I remember making something similar once and posting it onto Instagram, and it was my most popular photo at the time reaching above 100 likes (which was like madness at the time) – but I don’t believe I ever posted the recipe.
I could be wrong in saying where they came from, but slutty brownies have become a bit of an iconic bake. To be fair, they are actually Oreo brookies, but the name slutty brownies is so well known for what the bake is now, that people just tend to stick to it!
With a thick chocolate chip cookie layer, oodles of Oreos, and then gooey chocolate brownies you have a bit of a winner. It’s basically everything that I love, in one. Baked together to form a gooey yet delicious layer of cookie, and Oreos, AND then gooey brownie.
Cookie layer
For me, the cookie layer came about from my Rolo cookie bars (and my others, but c’mon.. Rolos.), as I just love it. My original brookie post was quite different, but I have perfected these cookie bars so much that I’ve just completely changed it up to what it is now. Also, with a highly different method for baking with the brownies – freezing the cookie dough for a bit first.
It essentially is the same recipe as my Rolo cookie bars, just with a smidge less flour, and no Rolos. I felt like the cookies could get away with being a smidge softer in these, so it’s not too much of a contrast with the brownies themselves. You want the main biscuit part to come from the Oreos instead.
Oreo Layer
There are a few ways you could approach this layer, but I’m fully convinced that placing the Oreos on top of the cookie layer whole is the best way to do it. You could chop them up or blitz them in a food processor, but I’m honestly not sure it would give the same result. Leaving them whole creates a clear Oreo layer once sliced, which I absolutely love. You get that classic Oreo crunch, the creamy centre, and a really nice contrast between the cookie base and the brownie topping.
This layer is technically optional, but I waaaaaay prefer it with Oreos. It adds another texture, another flavour, and another reason these deserve their name. These are called slutty brownies after all, subtlety was never the goal here.
Brownie layer
For the brownies, it’s essentially the same recipe as my triple chocolate brownies, but halved. You don’t need a normal batch of brownies for these, as you already have the cookie and Oreo layers. Luckily, the recipe is quite easy to halve. I wouldn’t recommend baking this amount of brownie on its own though, as that probably wouldn’t taste so good.
- Chocolate – I love to use dark chocolate here. For me, dark chocolate is the only way to go when it comes to brownies as it keeps them rich rather than sickly.
- Butter – unsalted butter is best, but baking spread works if you need a dairy-free alternative.
- Eggs – two medium eggs give the brownies structure while keeping them soft and fudgy.
- Sugar – caster sugar is my go-to, but granulated or golden caster both work well.
- Flour – plain flour is all you need; the eggs provide the lift.
- Cocoa powder – quality really matters here for a deep chocolate flavour – I use this cocoa powder
- Chocolate chips – Milk or white chocolate chips add extra pockets of sweetness and texture.
Serve
I realise that the name – slutty brownies – is a bit much, but it’s meant in a way because they are ‘dirty’. All your favourite bits, gooey, and smushed together. They are indulgent, delicious, and INSANE when warmed up. Not going to lie, on several occasions when I have made these, I don’t want for them to cool properly first before eating them as they are just incredible.
Serve these as the are, or with ice cream, or cream or anything really! They really are just to die for – and are so moreish. Definitely not one for those who are trying to reduce their calorie content in general – but one of these isn’t going to kill you. They will be the ultimate treat. I hope you love them.
Tips & tricks
- I think it’s important to freeze the cookie dough, to help the brownies bake better. It is optional however! If you want, you can put the cookie layer into the fridge for an hour instead of the freezer for 20 minutes.
- The Oreos are optional, if you just want to make brookies then you can leave them out.
- The cookie layer is inspired by my cookie bars, and the brownie layer is inspired by my brownies. The general idea, is inspired my Rosie Londoner.
- These will last for 4-5 days easily, if not longer if they aren’t already eaten.
Slutty Brownies!
Ingredients
Cookie Layer
- 115 g unsalted butter
- 125 g light brown sugar
- 1 medium egg
- 1/2 tsp vanilla extract
- 225 g plain flour
- 1/2 tsp bicarbonate of soda
- 1/2 tsp salt
- 1 tbsp cornflour
- 150 g milk chocolate chips
Oreo Layer
- 20-25 Oreos
Brownie Layer
- 100 g dark chocolate
- 100 g unsalted butter
- 2 medium eggs
- 140 g caster sugar
- 50 g plain flour
- 25 g cocoa powder
- 150 g milk chocolate chips
Instructions
For the Cookie Layer
- Beat together your butter and sugar until light and fluffy!
- Add in the egg, and vanilla, and beat again until smooth.
- Adding the flour, bicarbonate, salt and cornflour and beat until a cookie dough is formed!
- Add in the chocolate chips, mix, and press into the bottom of a 9x9" square baking tin, lined with parchment paper.
- Freeze for 20 minutes!
For the Oreo Layer
- Preheat your oven to 180ºc / 160ºc fan
- Cover the layer of cookie, with Oreos. I keep mine whole, and just cover them!
For the Brownie Layer
- Melt together your dark chocolate with your butter until smooth.
- Whisk together the eggs and sugar into a thick mousse like mixture, and then fold through the melted chocolate mix.
- Add in the flour, and cocoa powder, and fold through again.
- Mix through the chocolate chips carefully, and then pour over the Oreo layer!
- Bake the slutty brownies in the over for 25-30 minutes, or until baked through. Sometimes can take a smidge longer!
- Leave to cool in your tin for 10 minutes, and then carefully remove and finish cooling on a wire rack.
- Cut up into your portions and enjoy!
Notes
- I think it's important to freeze the cookie dough, to help the brownies bake better. It is optional however! If you want, you can put the cookie layer into the fridge for an hour instead of the freezer for 20 minutes.
- The Oreos are optional, if you just want to make brookies then you can leave them out.
- The cookie layer is inspired by my cookie bars, and the brownie layer is inspired by my brownies. The general idea, is inspired my Rosie Londoner.
- These will last for 4-5 days easily, if not longer if they aren't already eaten.
I have to admit, I went for cadbury milk chocolate instead of the dark chocolate, and even with baking longer than the recipe stated the Brownie layer was runny. I was a bit disheartened that I didn’t read it properly, but then I put it in the fridge for an hour and it was completely fine! The Brownie layer was more like a fudge and I thought it was wonderful! Loved the recipe and also love the NY cookies too!
Made these today the brownie was amazing but the base turned into a fluffy base? I followed all the steps and ingredients and thought it would turn out a bit like a blondie base. It tasted amazing!!
I made these today and omg they are the tastiest treats I have ever baked 🤤🤤 I used milk chocolate as I had no dark and didn’t want to go out again but it worked fine the middle is just slightly more gooey but I actually love that, eaten warm with ice cream 👌🏻
I also substituted the Oreo layer for a layer of mini eggs as they are my favourite and this is just divine 😍 thank you for this amazing recipe!
Hi can I use bourneville for the brownies? Thank you
I would not recommend that – you need chocolate with 70%+ cocoa content x
This recipe looks so amazing but sadly I detest Oreos. Can you suggest another biscuit to use please 😁
Literally any!!
How many calories is this?
For 1/16th it is around 500kcal
415cal for 1/16th
Out of interest, why is it that hobnobs will go soft and oreos wont? x
No, the oreos do too… but I have to say it as some people get really funny about a biscuit going soft.
This recipe is amazing!
I’m wondering if I can use hobnobs instead of Oreos on my next bake for a hobnob obsessed birthday girl? Thanks!
You can! Although they will go soft x
Hi,
I did everything you got in the recipe but the middle of the brownie is taking ages to cook, what am I doing wrong?
Thanks
🧁☺️
It can be a few things. What chocolate did you use for the brownie mix? x
I found this too but noticed that as it cools it hardens
Hello! Love this recipe – are these suitable to freeze?
Yes absolutely! These can be frozen for up to 3 months! Enjoy! x
Would I be able to use marshmallow fluff instead of the Oreos? I love the smores cookie bars and wanted to make a super slutty treat
You could try it, but it might make them bake a little weirdly!
I made these along side your nyc cookies , the cookies are amazing , however I followed every single step for the slutty brownies and after 29 minutes it was still no where near cooked , I put them back in for another 20 minutes and they have burnt on the top but after cooling are still just mixture in the middle , where could I be going wrong , I’ll definitely be giving them another go tho
What chocolate did you use for the base brownie mix? And how did you mix it?
I used dark chocolate and I used and electric hand whisk to mix the sugar and eggs and then folded in the dry Ingredients in , I followed every single step so I’m not sure if maybe it’s just a problem with my oven 🤷🏼♀️
It can be your oven – what cocoa content was the dark chocolate? Brownies are classically annoying unfortunately! x
Hi, would it be ok to refrigerate (rather than freeze) the cookie dough before layering the Oreos and brownie mixture on top and baking? The tin won’t fit in my small freezer! If so, how long for?
You can do, but it may still over bake slightly as it’s not going to be as cold! x