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Gooey, delicious Kinder Bueno cookie bars packed full with Kinder chocolate and Kinder Bueno pieces

Kinder Bueno bakes 

Kinder Bueno recipes honestly take over my blog a little. They’re always popular, and people always want more. I’ve actually only got four Kinder Bueno related recipes on my blog so far, but they’re some of my most popular, especially my Kinder Bueno Cheesecake.

Because of how Kinder Bueno is an absolute kicker, I thought I should post another and I know you’ll love these. Cookie bars are always a hit as well, but Kinder Bueno Cookie Bars?! Utterly next level.

Kinder Bueno cookie bars

Packed full of Kinder Chocolate, and Kinder Bueno pieces, this is the sort of treat that people will ask for again and again without fail. If you don’t like Kinder chocolate, however, please see my many other cookie bar recipes I have available

  • Flour – always use plain flour, you don’t want to use self raising. I also add cornflour to create a softer texture 
  • Raising agents – I only use bicarb in the cookie bars, you don’t want to use baking powder 
  • Salt – the best addition in my opinion. I use chunky sea salt, not table salt 
  • Butter – block butter or bakings spread works well 
  • Sugar – the standard cookie mix of light brown and also white granulated sugar 
  • Egg – one egg only, I use medium, but large will also work
  • Vanilla – an added little bit of sweetness 

Chocolate

So as this is a kinder bueno themed bake, I use the kinder chocolate and the kinder bueno bars. The kinder chocolate is best for the softer more chocolate chunk style part, and the kinder bueno is just kinder bueno with that iconic wafer filling. 

Folding through the Kinder Chocolate is easy as its solid, but folding in the Kinder Bueno isn’t as easy because they’re quite a bit more fragile. If you’re worried, I did it a couple of times where I put the Kinder Chocolate pieces into the cookie dough first, and then the Bueno so it wasn’t quite as solid as just the dough on its own. It’s not the end of the world if they Kinder Bueno pieces break up, but if you do it by hand it’ll be a lot safer than using a mixer for this bit

Adapting the bake

If you wanted to make these into a chocolate cookie dough, rather than a ‘plain’ one, you can add in 25g of cocoa powder, but take out 50g of the plain flour. The cocoa powder dries the cookie dough out more in comparison to the flour, so you’d have a smidge less dry ingredients.

I do have Kinder Bueno cookies on my blog which are always worth a try because, yet again with Kinder, HEAVEN! Also, Kinder lovers rejoice for my other Kinder Bueno recipes such as ice cream, blondies, a cookie pie or a Kinder tart – absolutely yes please, get me a plate now!

Tips & Tricks 

If you’re not careful, the chocolate that is on top or sticks out of the cookie bars can burn slightly, but if your oven is the correct temperature it should be fine. If it’s catching, you need to lower the temperature of your oven. 

  • These cookie bars will last for 4-5+ days at room temperature
  • These will freeze for 3+ months 
  • You can switch to milk chocolate chips instead of kinder chocolate
  • I use this 9″ square tin 

I hope you love this recipe as much as I did! Enjoy! x

Kinder Bueno Cookie Bars!

Gooey, delicious Kinder Bueno cookie bars packed full with Kinder chocolate and Kinder Bueno pieces!
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Category: Cookies
Type: Cookie Bars
Keyword: Kinder Bueno
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 16 Pieces
Author: Jane's Patisserie

Ingredients

  • 275 g plain flour
  • 1 tsp bicarbonate of soda
  • 1/2 tsp salt
  • 1 tbsp cornflour
  • 115 g unsalted butter
  • 55 g granulated sugar
  • 135 g light brown sugar
  • 1 medium egg
  • 1 tsp vanilla
  • 250 g Kinder chocolate (chopped)
  • 170-250 g Kinder Bueno bars (chopped)

Instructions

  • Preheat your oven to 190ºc/170ºc fan, and line a 9x9 inch square tin with parchment paper, and leave to the side for now. 
  • Whisk together the plain flour, bicarbonate of soda, salt and cornflour together in a bowl and leave to the side for now. 
  • Melt the unsalted butter until liquid, and add to a bowl. Add in the light brown sugar and granulated sugar and whisk the mixture together for two minutes by an electric whisk, 3 minutes by hand. 
  • Add in the egg and vanilla and whisk again until they're combined.
  • Add in the mixed together dry ingredients and mix until a really thick cookie dough is formed. 
  • Add in the chopped Kinder chocolate, and chopped Kinder Bueno, and fold through. Reserve some of the Kinder chocolate for the top of the cookie bars. 
  • Push the mixture into the 9x9 inch tin, and add on the last few bits of Kinder goodness. 
  • Bake the cookie bars in the oven for 17-22 minutes. I usually do 19 minutes so they stay reasonably gooey. 
  • Once baked, leave in the tin for 10 minutes to cool a bit, and then remove and cool fully on the wire rack. Enjoy! 

Notes

  • If you're not careful, the chocolate that is on top or sticks out of the cookie bars can burn slightly, but if your oven is the correct temperature it should be fine. If it's catching, you need to lower the temperature of your oven. 
  • I use this 9" square tin 
  • You can switch to milk chocolate chips instead of kinder chocolate
  • These will freeze for 3+ months 
  • These cookie bars will last for 4-5+ days at room temperature

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.

307 Comments

  1. Niamh on March 6, 2025 at 2:31 pm

    5 stars
    I made these yesterday and they are my new favourite sweet treat to eat! They were in the oven for 19 minutes and came out perfect. I did forget to add the kinder bueno so it was just with the kinder bars but they were still delicious

  2. Gem on August 13, 2024 at 9:13 pm

    Hi, I have a bake sale coming up so I am trying to be prepared! Can I make cookie bars and store in the fridge overnight to bake the next day? Thank you 🙂

    • Jane's Patisserie on August 21, 2024 at 9:29 am

      Yes, cookie dough can last for 48 hours in the fridge before being baked x



  3. T on October 19, 2023 at 4:49 pm

    Hey, is there any way to incorporate hazelnut spread into this recipe? Maybe a layer inbetween the cookie?

    • Meg on July 27, 2024 at 2:05 pm

      5 stars
      If you freeze them in balls- see Jane’s Nutella cookies



  4. Khloe on October 16, 2023 at 2:00 pm

    Could these be cooked on the bake setting of an air fryer? If so for how long and at what temperature? x

  5. H on February 11, 2023 at 5:09 pm

    Hi,

    Do you weight the butter at room temp and then melt the butter or do you weigh the butter after it’s melted

    • Jane's Patisserie on February 13, 2023 at 11:50 am

      I weigh the butter then melt it. Hope this helps! x



    • Peta Coates on August 14, 2023 at 9:25 am

      Hi, Jane…we love all your recipes 😊
      Can we freeze these after baking?



  6. Lesh on January 17, 2023 at 9:24 pm

    Hi I have a 9×13 tin. Do I times the recipe by 1.5? And how many eggs would I need?
    Thanks

  7. Maggie on August 17, 2022 at 5:00 pm

    5 stars
    Fantastic recipe, so simple and this is a 10/10 every time and I’m yet to meet a single person who doesn’t like them. Thank you!

  8. Elena on April 16, 2022 at 2:08 pm

    I’m really excited to make this recipe… but I don’t have baking paper… What should I do ?

    • Scott on January 28, 2025 at 12:43 am

      Just grease your pan well and it will be fine



  9. Suha on March 12, 2022 at 6:50 pm

    Hi jane, i want to make this beautiful recipe.
    But can i replace 9 inch square tin with round pan? If yes, what is the size of pan?

    • Jane's Patisserie on March 13, 2022 at 12:49 pm

      A square tin – a round tin 1″ bigger! So a 9″ square is most equal to a 10″ round x



  10. Sian on February 19, 2022 at 11:37 am

    Hi, I made these and the texture/look was perfect! Only wondered I thought they tasted a bit too salty, which overpowered the cookie a little bit! Could you make this recipe without salt/bicarb or without both? Was perfect otherwise! Effective instructions! Thank you!

    • Jane's Patisserie on February 28, 2022 at 12:10 pm

      Hiya! The bicarbonate of soda is a key ingredient, however you can adapt the salt to taste! Hope this helps, enjoy! x



    • Zoe on September 15, 2023 at 10:41 am

      Random but ive just realised i dont have eggs. What can i do please?



    • Cliodhna on September 19, 2025 at 7:32 pm

      Hi Do you use the wafer of the kinder bueno bar in it or just the filling inside it



  11. Jess on December 16, 2021 at 7:12 pm

    Can I make this recipe with a square 8×8 inch pan?

  12. Nic on October 21, 2021 at 12:03 pm

    5 stars
    Hi – I’ve made these before and they are amazing!

    Would they still bake ok in the aluminium foil baking pans as I need to bake quite a few and don’t have enough pans!

    Thanks x

  13. Malika on August 17, 2021 at 11:24 am

    5 stars
    Hi Jane would I be able to use Toblerone if so can I put inside and ontop

  14. Laura on July 22, 2021 at 4:20 pm

    5 stars
    Hi Jane, I’ve been asked to do a Kinder chocolate cookie cake for my niece, would this work in a round tin? Or should I follow your mini egg cookie cake recipe and sub the chocolate? (I’m in turmoil, help!)

    • Jane's Patisserie on July 25, 2021 at 9:23 am

      I would follow the mini egg cookie cake! x



  15. Petra on June 20, 2021 at 11:53 pm

    Hi Jane
    These sound absolutely delicious! I’m planning on making them at the weekend for a girly night with my friend and our little girls but I don’t have a 9×9 cake tin so in the process of ordering one. Which one would you recommend? And is a lose bottom tin better for getting the bake out of the tin or does it not really matter? Thanks so much. Can’t wait to make and taste them

    • Jane's Patisserie on June 28, 2021 at 3:42 pm

      Hello, any 9×9″ square tin will use, I don’t use a lose bottom one personally but you can x



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