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A delicious and easy recipe for Brookies with a chocolate chip cookie dough layer and chocolate brownie on top

What are brookies

Brookies can come in varying forms, but it’s essentially always the combination of brownie and cookie together. These are brookie bars, so a traybake version – and they are so easy to make.

So I love brownies, and I love cookies.. so brookies are just YES! I have made many a brownie recipe for this blog before, I have made several cookie bar recipes before – but I decided I would re-make and re-post this recipe for you all. These treats are utterly indulgent and delicious – its a mix up of my two favourite snacks! I adore cookies (possibly too much) but this is just the ultimate.

The cookie part

The cookie part of this bake, is basically the same as my other cookie bars. It’s a recipe that works, and it combines really well with the brownie part as well.

  • Butter – you can use an unsalted butter or a baking spread for ease
  • Sugar – I like to use light brown soft sugar but you can use any really. Granulated sugar, or a combination is nice
  • Egg – A medium egg or a large egg works perfectly.
  • Vanilla – Optional, but delicious as always
  • Flours – I like to use plain flour and then add in a little cornflour as mentioned below
  • Raising agent – Bicarb is basically essential in all cookie recipes for the texture that you are also after
  • Salt – I love adding salt to my bakes, but I understand that not everyone does so I totally understand if you don’t want to
  • Chocolate – you can basically use any chocolate you want, but I like to use milk chocolate typically

It may seem a little faffy to make them, but honestly it is not and it is worth it. The cookie recipe is basically a plain version of my Mini egg Cookie Bars – and it works a treat. The cornflour is in the recipe to create a DELICIOUS texture, but it is optional. You can use 25g more flour instead. 

The brownie part

When baking I recommend using dark chocolate that is 70% cocoa content or darker – and I tend to use 100% cocoa powder too. I find it deepens the flavour of the brownie or cookies to such a wonderful degree, so when you add in chocolate chips it gives the perfect sweetness.

My Brownie layer in this is also a smaller version of my Triple Chocolate Brownies – as it is literally halved. I find using medium eggs is easier for this, as you often use 4 medium eggs in brownies, or 3 large, so using two medium makes more sense. 

The chocolate chips make it fudgey and gooey and ideal for a treat – I tend to always use milk and white chocolate chips in my cookies and brownies, or all 3 types. The good thing is, you can use whatever flavour you want – for these I just used white because I wanted the contrast with the dark brown colour of the brownie. 

Baking the brookies

I personally recommend starting with the cookie bars as you want to prep the cookie dough, and then freeze for at least twenty minute before baking. You have to freeze the cookie part of the recipe first because typically brownies and cookies have different baking times.

While the cookie is freezing you can preheat the oven, and then prep the brownie mixture. Because it’s typically less brownie mixture than normal, it doesn’t take long to make at all.

Once you have poured the brownie on, you bake in the preheated oven until there is a small wobble in the middle. A knife test doesn’t work for brownies as they contain so much chocolate so the wobble test is best.

Once they have baked, leave to cool at room temperature and then set them in the fridge for a really fudgy texture. This part is optional, but I love setting them in the fridge personally!

But seriously, these are delicious, and will help settle the battle of which to eat, cookies or brownies? Nah, just have Brookies. Always have both if you can have both. 

Original recipe

This recipe was originally published in April 2016, so over the time I have adapted and changed it to suit my increasing baking knowledge and preferences, but I will always include the original recipe when I do this incase you love the old version.

The original cookie layer was – 115g unsalted butter, 50g granulated sugar, 75g light brown sugar, 1 large egg, 1/2 tsp vanilla bean extract, 125g plain flour, 1/2 tsp bicarbonate of soda, 1/2 tsp baking powder, 1/2 tsp salt, 75g white chocolate chips, 75g milk chocolate chunks

The original brownie layer was – 95g dark chocolate, 95g unsalted butter, 2 large eggs, 140g caster sugar, 50g plain flour, 20g cocoa powder, 50g white chocolate chips, 50g milk chocolate chunks

Tips & Tricks

  • I think it’s important to freeze the cookie dough, to help the brookies 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 cookie layer is inspired by my Cookie bars, and the brownie layer is inspired by my Brownies
  • These will last for 4-5 days easily, if not longer if they aren’t already eaten, in the fridge or at room temperature
  • You can freeze these for 3+ months once baked 
  • You can use whatever flavour chocolate chip you want

Brookies!

A delicious and easy recipe for Brookies with a chocolate chip cookie dough layer and chocolate brownie on top
Print Pin Rate
Category: Traybakes
Type: Brownies
Keyword: Brownies, Cookies
Prep Time: 40 minutes
Cook Time: 30 minutes
Cooling/Setting: 2 hours
Total Time: 3 hours 10 minutes
Servings: 16 Pieces
Author: Jane's Patisserie

Ingredients

Cookie Layer

  • 115 g unsalted butter
  • 125 g light brown sugar
  • 1 medium egg
  • 1/2 tsp vanilla extract
  • 275 g plain flour
  • 1/2 tsp bicarbonate of soda
  • 1/2 tsp salt
  • 1 tbsp cornflour
  • 150 g chocolate chips

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 chocolate chips

Instructions

For the Cookie Layer

  • Beat together the 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 Brownie Layer

  • Preheat the oven to 180ºc/160ºc fan.
  • Melt together the dark chocolate with the 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 pour the batter onto the frozen cookie dough.
  • Bake the Brookies in the oven for 25-30 minutes, or until baked through. Sometimes it can take a smidge longer! There should be a slight wobble to the mix.
  • Leave to cool in your tin for 10 minutes, and then carefully remove and finish cooling on a wire rack. If you want, you can then chill the bake in the fridge for 3 hours or so to help create the fudgey texture.
  • Cut up into your portions and enjoy!

Notes

  • I think it's important to freeze the cookie dough, to help the brookies 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 Cookie Layer is inspired by my Cookie bars, and the Brownie Layer is inspired by my Brownies
  • These will last for 4-5 days easily, if not longer if they aren't already eaten!
  • You can use whatever flavour chocolate chip you want!

 

ENJOY!

Find my other recipes on my Recipes Page!

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J x

© Jane’s Patisserie. All images & content are copyright protected. Do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words and credit me, or link back to this post for the recipe.

161 Comments

  1. Louise on March 28, 2024 at 12:28 pm

    5 stars
    If I don’t have sea salt is it half the amount for regular salt? So 1/4 tsp table salt? For sea salt – are coarse granules ok? Which sea salt would be best? Thanks so much

    • Jane's Patisserie on April 2, 2024 at 1:11 pm

      I use coarse sea salt, so table salt would be a pinch/1/4 tsp as it’s stronger! x



  2. Elise on March 7, 2024 at 4:42 pm

    5 stars
    As a 16 year old who enjoys baking I found making these SOOO fun. So therapeutic- and I mean these Brookies taste STUNNING. My form tutor made these for our form at school and I knew I had to make these at home. Personally I think these are the best thing I’ve ever made. Obsessed. Will definitely 100% be making again. If you’re hesitant about making, don’t. Just do it. So good. Thankyouuu

  3. Em on February 19, 2024 at 4:09 pm

    Just noticed the recipe has milk choc chips in the brownies & the photo has white. Didn’t notice til mine were out the oven.

  4. Amy Boghurst on December 22, 2023 at 12:09 pm

    Making the cookie dough in advance and wondering, if I make extra can I use some for cookies? It’s a slightly different recipe from your NYC’s though.

  5. Amy Boghurst on December 20, 2023 at 10:51 am

    Can I make and freeze the cookie dough a few days in advance to save time later? Want to make for Christmas but time is tight! X

  6. Phil on October 14, 2023 at 11:56 am

    5 stars
    Just made these and they were delicious.

    So nice to see a recipe in grams and Celsius, as opposed to cups, stick, barley corns and smidgens.

  7. Amanda on September 3, 2023 at 8:53 am

    Hi Jane. I am wanting to make this but in a cookie pie. Would I follow the cookie pie method of freezing the cookie crust and brownie filling? And would I alter the cooking time?

  8. Chelsey on June 15, 2023 at 10:17 pm

    Hi Jane! I just made these and they look great! The brownie cooked perfectly but I noticed the cookie was a little soft in the middle, only slightly though. Are they meant to be like this or do you think it needed a little longer in the oven? X

    • Jane's Patisserie on June 19, 2023 at 11:29 am

      Hiya! This probably just means they needed a smidge longer baking x



  9. Elisha on April 12, 2023 at 11:56 pm

    Hi how would I do this but with the brownie at the bottom and the cookie layer at the top please? I want to make it for a birthday gift but think it would look prettier with cookie ontop.

    • Jane's Patisserie on April 17, 2023 at 1:54 pm

      Hiya! Its best to follow the recipe as it is, then just turn it over once baked! Hope this helps! x



  10. Louise on February 26, 2023 at 7:32 pm

    If I wanted to make these as mini egg brownies would you just recommend hanging the mini egg brownie recipe and adding to the cookie recipe here?

    • Jane's Patisserie on February 27, 2023 at 3:57 pm

      Yes that should be fine! Enjoy! x



  11. Emily on February 9, 2023 at 3:15 pm

    Hi, I made these once before and they were delicious. I want to make these as a cheesecake base with your milkybar cheesecake mix on top. Would this work? If so, would I split the mixture into two tins so it’s not so thick? And how long should I then bake it in the oven for? Thank you <3

  12. Betty on January 28, 2023 at 10:44 pm

    Hi Jane, the bottom of my cookie dough doesn’t look cooked, but when I slice the brookie the cookie dough looks fine and they taste fine. Is that ok that the bottom doesn’t look cooked?

  13. Kelly jennings on October 12, 2022 at 3:21 pm

    Hi Jane
    Could you make the cookie base into a chocolate cookie and how much cocoa would you need
    Thanks

    • Jane's Patisserie on October 13, 2022 at 3:30 pm

      Hiya! Take out 60g flour and replace with 40g cocoa powder. Hope this helps! x



  14. Emma on October 9, 2022 at 1:29 pm

    Hey! I tried doing this in a cake tin. Froze the cookie dough before adding the brownie batter as instructed and baked at 160c. However the cookie dough was cooked (a little overdone) but the brownie barely baked at all! I left in for longer than instructed but it was still really raw! Any ideas why this might have happened? Thanks! X

    • Jane's Patisserie on October 13, 2022 at 2:47 pm

      Hiya! When baking brownie – bake until there is a slight wobble in the middle, then leave in the fridge overnight to ‘set’. Hope this helps! x



  15. Vicky on October 6, 2022 at 2:40 pm

    4 stars
    Hiya, when I have made the cookie dough, can I leave it in the freezer longer than 20 mins? Thanks

    • Jane's Patisserie on October 7, 2022 at 11:32 am

      Hiya! Yes, cookie dough will last up to 48 hours in the fridge or can be frozen for up to 3 months. Hope this helps! x



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