Kinder Bueno Cookie Bars!

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Gooey, Delicious Kinder Bueno Cookie Bars packed full with Kinder Chocolate and Kinder Bueno pieces!

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. Not only is this always ranking in my top 10 of recipes every single day, it’s my most viewed video on my youtube channel, and is always a hit on social media.

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. 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!

The only thing I often struggle with when making Kinder Bueno related goodies, particularly ones that involve the Kinder Chocolate itself, is that my Other Half tends to steal them as it’s his favourite chocolate. Honestly, he finds them and steals them, so I now have to hide them. They don’t stay in my usual chocolate box of goodies for him to raid, they’re upstairs in the office to avoid his temptation.

When I suggested these bad boys to him, and he then told all his colleagues they basically jumped and screamed. However, I felt kinda mean that I didn’t share the first batch…. they were too tasty! However, I was kind and shared the next few batches I made as I was in a bit of a Kinder Overload for a while. I never thought there could be such a thing, but there 100% was. All I did was eat a different chocolate for a while, but I soon came back to Kinder.

When I gave a different batch to some of my other Trusty Taste Testers, they said they were some of the best things they’d ever eaten. I did think maybe I had overdone some of the chocolate on the sides, but after baking these for exactly 19 minutes, and leaving them to cool for half an hour or so they were SO GOOEY and oh my actual days.

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 I did it where I put the Kinder Chocolate pieces in first into the cookie dough, 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!

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. If you wanted to make these into actual cookies, you’d have to add in 50g more flour, so that they don’t spread too much!

If you’re not careful, the chocoalte 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 burns really quickly, then something is wrong with your oven. I bake these for 19 minutes in my oven, and the chocolate edges just ever so slightly start to boil a bit, and thats it. They’re never fully burnt because the traybake isn’t in for so long, and I use a fan oven at 170C.

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


4.67 from 12 votes
Kinder Bueno Cookie Bars!
Prep Time
10 mins
Cook Time
20 mins
Total Time
30 mins

Gooey, Delicious Kinder Bueno Cookie Bars packed full with Kinder Chocolate and Kinder Bueno pieces! 

Course: Cookies
Cuisine: Cookie Bars
Keyword: Kinder Bueno
Servings: 16 Pieces
Calories: 299 kcal
Author: Jane's Patisserie
  • 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)
  1. Preheat your oven to 190C/170C fan, and line a 9x9inch square tin with parchment paper, and leave to the side for now. 

  2. Whisk together the Plain Flour, Bicarbonate of Soda, Salt and Cornflour together in a bowl and leave to the side for now. 

  3. Melt the Unsalted Butter till 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. 

  4. Add in the Egg and Vanilla and whisk again till they're combined in. 

  5. Add in the mixed together Dry Ingredients and mix until a really thick cookie dough is formed. 

  6. 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. 

  7. Push the mixture into the 9x9inch Tin, and add on the last few bits of Kinder Goodness. 

  8. Bake the Cookie Bars in the oven for 17-22 minutes. I usually do 19 minutes so they stay reasonably gooey. 

  9. Once baked, leave in the tin for 10 minutes to cool a bit, and then remove and cool fully on the wire rack. Enjoy! 

Recipe Notes
  • I bought two packs of the 6 Medium Kinder Chocolate bars, which weigh 126g per packet to make up the 250g for the Cookie Bars. 
  • Each multipack of Kinder Bueno is about 170-175g worth, so you can use one packet, or buy more and add a smidge more. Don't go too overboard though otherwise, it'll struggle to bake. 
  • You can use all Kinder Chocolate if you wish, but I wouldn't recommend all Kinder Bueno as the chocolate is what makes it gooey. 
  • No the wafers in the Bueno won't stay crunchy, but that's not the end of the world. it's there for the taste! 
  • These will last for 5 days or so after baking if they last that long. Feel free to rewarm in the microwave briefly for gooey bars! 
Nutrition Facts
Kinder Bueno Cookie Bars!
Amount Per Serving
Calories 299 Calories from Fat 135
% Daily Value*
Fat 15g23%
Saturated Fat 9g56%
Cholesterol 25mg8%
Sodium 163mg7%
Potassium 109mg3%
Carbohydrates 41g14%
Fiber 1g4%
Sugar 25g28%
Protein 3g6%
Vitamin A 195IU4%
Calcium 19mg2%
Iron 1.6mg9%
* Percent Daily Values are based on a 2000 calorie diet. These are only estimates.


Find my other Recipes on my Recipes Page!

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About Author

Hiya! I'm Jane, and I adore baking, cooking and all things delicious. I'm also partial to homewares, lifestyle posts and more!


  • Immi
    April 1, 2020 at 10:42 pm

    5 stars
    Omg I made these and they were really easy to make, I added all my chocolate even though it was a little tough to get it all in , payed off tho!!! These are so gooey and yummy I am definitely making these again!!!

    • taira
      April 4, 2020 at 4:20 pm

      5 stars
      Just a question could I use muscovado sugar instead of the brown sugar.

    • Jane's Patisserie
      April 4, 2020 at 4:20 pm

      Yes you can!

  • Natasha
    March 11, 2020 at 6:41 pm

    5 stars
    Oh my word, just made these and they are awesome! I swear by all your recipes they are always reliable and I don’t need to test bake anything as it always turns out perfect. Thank you so much 🙂

    • Jane's Patisserie
      March 11, 2020 at 8:38 pm

      Ahh that’s so lovely! Thank you so much!! x

  • Catrin
    March 10, 2020 at 2:51 pm

    Hi just wondered what the texture inside is meant to be like, just baked these and the outside is crumbly and crispy and then the inside is very wet

    • Jane's Patisserie
      March 11, 2020 at 9:20 am

      They’re meant to be cookie-like – a slightly crunchier outside with a gooey middle!

  • Chloe
    March 10, 2020 at 1:19 pm

    3 stars
    I don’t know what went wrong… why have mine turned out to be a sponge rather than a cookie??

    • Jane's Patisserie
      March 11, 2020 at 9:20 am

      As the recipe has the ingredient it has, something potentially was measured incorrectly or mixed incorrectly as I have honestly never experienced that with a cookie mix!

    • Evie
      March 29, 2020 at 3:47 pm

      4 stars
      Mine turned out sponge like to however they still taste great

  • Joanna
    March 9, 2020 at 11:01 am

    Hi Jane,

    Is it possible to use other chocolate for this recipe e.g. galaxy chocolate, in the same measurements?

    Love all your recipes!

  • Vicki
    February 10, 2020 at 9:34 pm

    4 stars
    I had the same problem that others seemed to have that the mix was really dry and crumbley, so I just added a splash of milk so it would come together and it seemed to work! I also found the amount of kinder Bueno bars too much, I used 170g but guess this is just personal preference 🙂 but amount of kinder chocolate was spot on 🙂

    • Jane's Patisserie
      February 12, 2020 at 1:54 am

      As I’ve said before, the dryness of the cookie dough does not affect the bake.

  • Ericka
    January 31, 2020 at 10:41 pm

    Hiya Jane, just tried your recipe and my mixture came out very dry and crumbly, I followed through and just popped it into the oven and took them out and let them harden when they were done and there just keep crumbling? By any chance do you know how to stop this or how to change this for future baking?
    They still tasted great but I think they’d be so much nicer if they went into my mouth and not crumble all over the place haha!
    Thanks so much ☺️

    • Jane's Patisserie
      February 1, 2020 at 9:58 pm

      The mixture is dry – but that’s normal. They do also have a lot of chocolate in, so if they’re slightly over baked they could break apart after cutting!

  • Jess
    January 26, 2020 at 11:38 am

    Hi Jane, I made this recipe this morning and the mix ended up being slightly dry/crumbly and it’s made the overall bake slightly dense. Any tips? Thanks so much!

    • Jane's Patisserie
      January 26, 2020 at 2:19 pm

      The mixture is quite dry – it just needs a little less baking time perhaps.

  • Adam Walker
    January 14, 2020 at 10:37 pm


    By kinder chocolate bars do you mean the small bars with the white center like these?

    Many thanks,

  • Kim
    December 24, 2019 at 4:50 am

    Hi Jane
    Kind of silly question , when you say cornflour I googled it does that mean corn starch? Planning on making these tomorrow for Xmas 😳 it days on google they are same thing

    • Jane's Patisserie
      December 24, 2019 at 8:44 am

      Yeah, I’m in the UK and we call it cornflour!

  • India Ede
    October 30, 2019 at 12:40 pm

    Can I freeze these?

  • Kiki Lang
    October 24, 2019 at 9:24 am

    If you made these into cookies, would it still be 16 portions youd split it into and for the same time/temp in the oven?

  • Jessica
    October 22, 2019 at 10:00 pm

    Hi Jane
    So I’m planning on making these very soon and was just wondering is granulated sugar just normal sugar that you put in your tea? Or should I use caster sugar instead?
    Many thanks

    • Jane's Patisserie
      October 23, 2019 at 9:23 am

      Granulated sugar is granulated sugar, caster sugar is different and smaller granules. In the supermarket it’s classed as granulated, but as to what people put in their tea it can vary I have found!! x

  • Sammi Penn
    October 12, 2019 at 8:31 am

    5 stars
    My boyfriend and I were very impressed with this recipe, thanks!

  • Zoe
    September 27, 2019 at 10:34 pm

    I’m looking forward to trying these! My husband is Coeliac though; do you think it would work using gluten free flour instead? Thank you in advance!

    • Jane's Patisserie
      September 28, 2019 at 7:30 am

      Hey! Well, you wouldn’t be able to use Kinder Bueno, so I’m not too sure this is the best one. You MUST still use the cornflour, and they’ll probably be crumbly. I wouldn’t suggest adding in too much more kinder chocolate either as that’ll make it ‘wetter’ when baking!

  • Hesaa
    September 27, 2019 at 8:40 am

    Tried it yesterday, LOVE!
    I wonder if I can bake this into individual cookies?

  • Jasmine
    August 12, 2019 at 12:47 am

    Hi jane can you use stork in this recipe and your blondie and brownie recipes? X

    • Jane's Patisserie
      August 12, 2019 at 9:24 am

      You can, but I generally prefer using unsalted butter!

  • Jessica
    June 20, 2019 at 5:39 pm

    5 stars
    Hi Jane, I don’t have a square 9×9 tin, I do have square/rectangular glass Pyrex dishes would I be able to use these instead to bake in the oven? Thank you!

    • Jane's Patisserie
      June 20, 2019 at 7:16 pm

      Is the dish still 9×9″? The size is the most important bit to get it to bake right – but you could give it a go!

    • Jessica
      June 23, 2019 at 8:48 am

      Hi Jane thanks for the response! I don’t think it is, I’ve found tins that are 20cm squared and 24cm square would either of these do? Thank you!

    • Jane's Patisserie
      June 23, 2019 at 9:38 am

      The 24cm is closest to the 9″ so maybe give that one a go!! X

  • Jim
    June 16, 2019 at 3:45 pm

    How long should I re-warm in microwave at 700w?
    Thank you jane

    • Jane's Patisserie
      June 16, 2019 at 8:43 pm

      Umm – mine is 1000w and I usually do about 25 seconds?!

  • Karina
    May 6, 2019 at 3:40 pm

    5 stars

    These look amazing! I’m trying to find a recipe for kinder blondies as I’ve been asked to make them! Would you say this is the same thing?

    • Jane's Patisserie
      May 6, 2019 at 3:54 pm

      Hiya! No, these are cookie bars. They are cookies in a traybake form.

  • Aaron
    April 19, 2019 at 1:18 pm

    5 stars
    These tasted amazing. Thank you for the recipe!

  • Anna
    April 8, 2019 at 10:43 pm

    5 stars
    Absolutely gorgeous, thank you for the recipe. We used just the chocolate bars (not the Bueno) and they came out lovely. The only downside is how quickly they get eaten!

  • Ashlee Stevens
    April 5, 2019 at 4:46 pm

    5 stars
    Hi Jane,

    I was wondering when you say Vanilla do you mean vanilla extract?

    Sorry for the silly question x


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