*This post may contain affiliate links. Please see my disclosure for more details!*

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!

You can find me on:
Instagram
Facebook
Pinterest
Twitter
Youtube

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. Eleisha Freeman on June 5, 2025 at 4:00 pm

    5 stars
    Is there any nutritional information for the brookies?

  2. Gemma on June 4, 2025 at 7:23 pm

    5 stars
    Absolutely amazing!! I have only made these once, but I am already planning to make some more! These are so delicious and more-ish and my son loves them. Thank you so much for this recipe! 👍🏻

  3. Rads on March 18, 2025 at 6:36 am

    Hi Jane! Thank you so much for your reply! Would it be best to chop the mini eggs for the cookie dough rather than leave them whole as the depth of cookie wouldn’t be as deep? Hope that makes sense x

    • Jane's Patisserie on March 18, 2025 at 9:57 am

      It’s completely up to you!



    • Jana on May 31, 2025 at 2:48 am

      There are far too few recipes for Blookies. A Blondie with Cookie = Blookie. There have to be more of them. Please try it. That would be a hit.



  4. Rads on March 12, 2025 at 9:42 am

    Hi Jane! Do you think this recipe would work as a mini egg version. So maybe using half quantity mini egg cookie bar dough and half quantity mini egg brownies mixture to create Easter Brookies? x

    • Jane's Patisserie on March 13, 2025 at 8:55 am

      Yeah I’d say so! Just add mini eggs to this one super easy x



  5. Ed on February 16, 2025 at 6:56 pm

    Followed the instructions down to the T. Cooked in oven for 28 mins at 180… I’ve just cut into the bake and it looks still raw inside… very runny and not baked… can anyone tell me why this is??

    • Jane's Patisserie on February 17, 2025 at 9:23 am

      It could be a number of things. What tin did you use? What brand of chocolate did you use in the base of the brownie mix and what was the cocoa content? x



  6. Leon on October 21, 2024 at 10:07 am

    5 stars
    These are amazing and made them with my son a few times. Do you have a vegan version of this?

    • Rhys White on January 31, 2025 at 12:02 pm

      Hi leon, no



    • Jo on June 4, 2025 at 8:11 am

      Hi Leon, I’d use Jane’s vegan brownie recipe and Jane’s vegan cookie recipe (both great!) for the ingredients and then I’d use the brookie recipe as a guide for timings etc.



    • Jade on October 19, 2025 at 8:44 am

      Can I just not use the cornflour or is it like a nessecity?



  7. Sue Jackson on October 10, 2024 at 11:40 am

    Hi Jane I’ve done this recipe but added a caramel chocolate bars in the middle can I still freeze these when cooked .

  8. Grace Reilly on August 22, 2024 at 5:15 pm

    5 stars
    Jane this is such a good recipe I only had to add a bit more flour to the brownie batter cause it was runny but other than that it was fab

  9. Lily on June 11, 2024 at 10:18 am

    5 stars
    My science teacher made them for us, so lovely

  10. Ligma bolls on April 30, 2024 at 4:24 pm

    5 stars
    Best brookie recipe ever, love it.

  11. Louise on April 2, 2024 at 10:54 pm

    5 stars
    My god Jane these are too good! Seriously I will be making these on repeat! Thank you for all of your wonderful recipes both here and in your recipe books. These Brookies are up there with the best!

Leave a Comment

Recipe Rating








This site uses Akismet to reduce spam. Learn how your comment data is processed.