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    Home » Recipes » No-Bake

    Chocolate Peanut Butter Cornflake Slice 

    image of Lucy's face
    Modified: Sep 24, 2025 · Published: Aug 29, 2017 by bakingqueen74 · This post may contain affiliate links · 29 Comments
    61082 shares
    Jump to Recipe

    Ready for a slice of chocolate peanut butter cornflake slice? As you can see, my healthy eating post-holiday is going well! It was definitely time for a treat.

    Chocolate peanut butter cornflake slice.

    No baking needed, just some time to chill the layers, and you can help yourself to a slice of this.

    You don’t need any fancy equipment, just a tray of some kind to make it in (I used a loaf tin) and bowls for melting and stirring.

    A yummy treat for the kids before they go back to school perhaps

    Or for yourself if you are anything like me.

    It isn’t difficult, it is just full of chocolate peanut butter goodness.

    Chocolate peanut butter cornflake slice on wooden board.

    Start with a layer of cornflakes and chocolate as if you were making chocolate cornflake cakes. Let it chill in the fridge.

    Top with a layer of peanut butter – sweetened up a little of course! Allow to set again, then top with melted dark chocolate.

    And there you have it, a whole lot of yumminess you need to slice up straight away and share out.

    Baking is fun but no-bakes are great for when you want something simple. it is rich and indulgent but just so easy and straightforward.

    Bite through the top layer of chocolate to the creamy peanut butter beneath, and then reach the chewy cornflake layer at the bottom. A load of textures and a load of calories, clearly!

    Chocolate peanut butter cornflake slice on baking paper, cut into slices.

    I just love the rich colour of the peanut butter. That creamy layer just makes this cornflake slice a bit more exciting!

    Keep it in the fridge if it is warm weather to keep it at its best. See if you can stop at one slice. I find that a bit of a challenge.

    Chocolate peanut butter cornflake slice on wooden board, close up.

    Get the recipe below. Check out my cake archives for more indulgence, including a few other No-Bake recipes (such as fudge!).

    I’m just going to try and stop myself eating another slice, wish me luck.

    Chocolate peanut butter cornflake slice.

    Recipe

    Chocolate peanut butter cornflake slice sliced open.

    Chocolate Peanut Butter Cornflake Slice

    By Lucy Allen | BakingQueen74
    A rich and indulgent no-bake recipe with layers of cornflakes in chocolate, peanut butter and chocolate.
    4.65 from 14 votes
    Prep Time: 1 hour hour 30 minutes minutes
    Total Time: 1 hour hour 30 minutes minutes
    Servings: 8
    Course: Baking, Dessert
    Cuisine: British
    Calories: 497kcal
    Rate Save Saved! Pin Print

    Ingredients

    • 120 g (4½ cups) cornflakes
    • 180 g (1 cups) dark chocolate I used 51%
    • 50 g (2 tbsp + 1 tsp) golden syrup
    • 220 g (¾ cups) smooth peanut butter
    • 25 g (2 tbsp + 2 tsp) icing sugar
    • 180 g (1 cups) dark chocolate

    Instructions
     

    • Mix together the first amount of chocolate and golden syrup. Melt together gently. Place the cornflakes in a large bowl and pour the melted chocolate/syrup over them. Mix to combine thoroughtly.
      180 g dark chocolate, 50 g golden syrup, 120 g cornflakes
    • Spread the cornflakes in the base of a large loaf tin (lined). Press down well to form a solid base layer. Chill in fridge until set.
    • Gently heat the peanut butter in a bowl (I used the microwave, 1 minute at 600 W) and stir in the icing sugar. Pour it over the chilled chocolate cornflake mixture and spread evenly to form the second layer. Chill in fridge.
      220 g smooth peanut butter, 25 g icing sugar
    • Melt the second lot of chocolate and pour over the chilled peanut butter/cornflake slice. Spread evenly. Chill in fridge until set. Cut into slices to serve.
      180 g dark chocolate
    Have you made this recipe?Please leave a star rating and comment below to let me know how you got on!

    Sending this over to We Should Cocoa with Choclette from Tin and Thyme, check it out for lots of recipes using chocolate.

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    Reader Interactions

    Comments

    1. Deborah Williamson says

      December 25, 2020 at 4:41 pm

      I found the chocolate and golden syrup clumped before coating the cornflakes, (wasted 2 bars of chocolate doing this) I added 50g of butter and no more issues.

      Reply
      • bakingqueen74 says

        December 26, 2020 at 9:25 am

        Yes you need to make sure they are the same temperature otherwise seizing can occur like that. A good fix for seizing is a little milk and stirring until it goes glossy again.

        Reply
    2. Sian says

      July 21, 2020 at 6:59 am

      Could I use crunchy peanut butter instead please? I do like my nuts

      Reply
      • bakingqueen74 says

        July 23, 2020 at 2:06 pm

        Sure! Let me know it you enjoy it.

        Reply
    3. Janie says

      August 22, 2018 at 2:22 am

      What is golden syrup?

      Reply
      • bakingqueen74 says

        August 24, 2018 at 3:09 pm

        its an ingredient used in the UK, sugar based. If you let me know where you are based I would be happy to look up an alternative for you!

        Reply
      • deb says

        August 18, 2019 at 12:29 pm

        i think it’s equivalent to corn syrup

        Reply
    4. Isabelle says

      May 20, 2018 at 8:41 pm

      Looks yummy but would it work with milk chocolate do you think

      Reply
      • bakingqueen74 says

        March 06, 2021 at 8:26 am

        yes that would work too, just a simple switch

        Reply
      • Eleanor says

        March 19, 2025 at 9:20 pm

        I know this is an old post but hopefully you’ll still see my question how long does this keep for? And can it br frozen or will the cornflakes just go soggy/chewy? It looks so good and I’d love to give it a try!

        Reply
        • bakingqueen74 says

          March 22, 2025 at 1:28 pm

          Hi Eleanor, this keeps for seconds in my house 🙂 – I would keep it for 2-3 days in an airtight tin usually though. It can’t be frozen without degradation so I would not recommend freezing it.

          Reply
    5. Gaby says

      May 04, 2018 at 9:05 pm

      Can I used honey instead?

      Reply
      • bakingqueen74 says

        May 14, 2018 at 6:59 pm

        Not sure which ingredient you wanted to replace with honey? if it is the golden syrup then I’d say honey wouldn’t have the same effect which is to help the finished slice harden, and is also not as sweet. Corn syrup is the USA option, though that also has a different flavour (much milder) and texture.

        Reply
        • Kathryn says

          March 05, 2021 at 5:01 pm

          Maple syrup. Of course! Healthier version.

          Reply
    6. Gaby says

      May 04, 2018 at 9:02 pm

      How I convert this gr into a cup?

      Reply
      • bakingqueen74 says

        May 04, 2018 at 9:04 pm

        Hi Gaby there is a link US Measurements in blue below the list of ingredients, click that and you will see the cup measurements.

        Reply
    7. Emma says

      April 24, 2018 at 8:26 pm

      Love the recipe – although I forgot the icing sugar. Does this matter?

      Reply
      • bakingqueen74 says

        April 24, 2018 at 8:29 pm

        No the peanut butter just won’t be sweetened but there isn’t much icing sugar anyway so it won’t be too different. Hope you enjoy it!

        Reply
    8. Ina says

      March 24, 2018 at 1:29 am

      Could you convert the recipe to English measurements?

      Reply
      • bakingqueen74 says

        March 24, 2018 at 7:18 am

        These are English measurements Ina, I’m English!

        Reply
        • Jenny says

          March 31, 2018 at 6:52 pm

          Could you use maple syrup in place of golden syrup?

          Reply
          • bakingqueen74 says

            March 31, 2018 at 6:53 pm

            Ooh I don’t know Jenny if that would work. Golden syrup helps the chocolate to harden and I’m not sure if maple would do the same.

            Reply
    9. Laura says

      February 23, 2018 at 5:40 pm

      Can you make with other cereal

      Reply
      • bakingqueen74 says

        February 24, 2018 at 9:35 am

        I don’t see why not, rice krispies might work well too!

        Reply
    10. Corina Blum says

      September 06, 2017 at 11:54 am

      Oh yum this looks so tempting! I would definitely enjoy it. I just love how full of peanut butter and chocolate it is.

      Reply
    11. Janice says

      August 30, 2017 at 8:31 pm

      This looks so delicious, such great flavours and textures, pinning for later.

      Reply
      • bakingqueen74 says

        August 30, 2017 at 8:33 pm

        Thanks very much Janice, haven’t baked with chocolate for ages and this was the result!

        Reply
    12. Choclette says

      August 30, 2017 at 8:56 am

      Oh my, these look amazing Lucy. Chocolate and peanut butter are a match made in heaven and chocolate cornflake cakes are one of my favourites. What a fantastic combination.

      Reply
      • bakingqueen74 says

        August 30, 2017 at 6:34 pm

        Thanks Choclette, they are disappearing fast here!

        Reply
    4.65 from 14 votes (10 ratings without comment)

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    Hi, I'm Lucy! I'm a slow cooker addict, food blogger and also a busy working mum of two. I hope you'll enjoy the recipes I create and post which are perfect for busy families.

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