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    Home » Recipes » New Zealand Recipes

    Rice Bubble Slice

    By Erin Clarkson on Mar 27, 2022 (updated Dec 10, 2023)
    5 from 22 reviews
    39 community comments
    This post may contain affiliate links.

    Jump to Recipe

    Rice Bubble Slice is the New Zealand version of Rice Krispie Treats without marshmallow. Made with honey, it is quick and easy to make and tastes super nostalgic.

    rice bubble slice on pan with parchment paper

    Table of contents

    • Rice Bubble Slice - New Zealand Rice Krispie Treats
    • What is Rice Bubble Slice?
    • How to make Rice Bubble Slice
    • How to line a square pan
    • Rice Bubble Slice Troubleshooting
    • FAQ for Rice Bubble Slice
    • For more New Zealand Recipes, check out:
    • Recipe For Honey Rice Bubble Slice

    Rice Bubble Slice - New Zealand Rice Krispie Treats

    Hi hi! Finally sharing the recipe for this Rice Bubble Slice! I shot this last year before we moved home and have needed to get it up as rice bubble slice is the ultimate kid's nostalgia for anyone who grew up in Australia or New Zealand, along with chocolate crackles. I have a bunch of New Zealand recipes on my site - it is so fun to introduce those who aren't familiar to the things that I grew up eating!

    sliced rice bubble slice with knife and pan

    What is Rice Bubble Slice?

    Rice bubble slice is a version of Rice Krispie Treats, but instead of using marshmallow and butter, it is made with honey. Here's what is in it:

    • Rice Bubbles. This is what we call Rice Krispies - the puffed rice cereal.
    • Butter. I use unsalted butter, if you have salted butter then just leave the salt in the recipe out.
    • Honey. This is what helps form the caramel part of the rice bubble slice. If you haven't tried rice bubble slice with honey instead of rice krispies made with marshmallow, now is the time - it is so good. I have made this with both a creamed style honey and a liquid honey and both work great.
    • Sugar. This makes up the caramel portion too. Either caster sugar or regular granulated sugar works great.
    • Vanilla. This wasn't included in the ones I had as a kid, but adding a tiny bit of vanilla bean paste or vanilla extract to your rice bubble slice makes them taste so good!
    • Salt. Always needed to balance out the sweetness of the honey and the sugar. Leave it out if you have used salted butter.
    rice bubble slice in pan ready to cut

    How to make Rice Bubble Slice

    Rice bubble slice is super quick and comes together in less than ten minutes.

    • Measure out your rice bubbles. Having everything ready to go before you start helps a lot - you want to have your rice bubbles measured out and your pan prepared and lined and ready to go.
    • Make the honey caramel. Combine all the ingredients for the caramel except the vanilla in a heavy bottomed pan, and place over medium high heat. Once it has come to a boil, cook for about 2 minutes, stirring constantly with a rubber spatula.
    • Add the rice bubbles. Remove the caramel from the stove, add the salt and vanilla, then pour the hot caramel into the bowl with the rice bubbles and stir until well combined.
    • Transfer into the pan. Once the rice bubbles are evenly coated in the mixture, transfer into your prepared pan and smooth down well. I like to use an offset spatula but you could also use a piece of parchment paper to press it down evenly.
    • Leave to set. The rice bubble slice needs some time to cool - you can either leave it to cool at room temperature or place it in the fridge to speed things up.
    • Cut and store. Cut the rice bubble slice into pieces using a hot knife, then store in an airtight container at room temperature.
    stacked up rice bubble slice

    How to line a square pan

    I use a square nonstick pan to make my rice bubble slice. For recipes that are a little sticky or you want to remove all in one go I prefer to use the sling method, where you take two pieces of parchment and use them to line the pan, leaving some overhang.

    This means that when the time comes to remove whatever is in your pan, you can use the overhang as handles to take it out cleanly. I like to clamp mine down with some metal binder clips to keep everything tidy.

    pan of rice bubble slice

    Rice Bubble Slice Troubleshooting

    My rice bubble slice is too hard.
    This will be because you over cooked the caramel part of the recipe, bringing it to too high of a temperature, so the rice bubble slice is crunchy. Try cooking it for less time. I aim for about 2 minutes once it has come to a boil.

    My rice bubble slice is too soft.
    Again this is the reverse of the problem - the mixture didn't cook enough. It will still be totally edible, just try cooking the mix a little longer!

    side on shot of rice bubble slice

    FAQ for Rice Bubble Slice

    Can Rice Bubble Slice be made Gluten Free?
    Rice bubbles do often have gluten in them - so make sure that you use a gluten free rice bubble, or you can also make this with puffed rice.

    What tools and equipment do you use?
    You can see a full list of all the tools I use here

    Which pan did you use?
    I made my rice bubble slice in a non stick 8" (20cm) square pan. This made a nice thick rice bubble slice - you can make it in a thinner pan if you like.

    Can I make rice bubble slice with brown butter?
    I tried and it didn't go well - it was super greasy and not that nice, so browning the butter is not worth the extra step here.

    What is the difference between Rice Krispies and Rice Bubbles?
    It's the same thing just a different name.

    Can this recipe be doubled?
    Yes - you can scale it as you like. My pan size calculator will be helpful for working out how to scale the recipe.

    Can I add peanut butter / marshmallow / other ingredients
    I haven't tried sorry - you are welcome to but I don't know how it will go.

    How do you store rice krispie treats?
    I store mine in an airtight container at room temperature. They are best eaten in the first 1-2 days that you make them.

    corner pan shot of rice bubble slice

    For more New Zealand Recipes, check out:

    • Anzac Biscuits
    • No-Bake Peppermint Slice
    • Custard Square with Homemade Puff Pastry
    • Tan Square

    ❤️ Made this recipe and love it? ❤️

    I would LOVE for you to leave me a review and star rating below to let me know how you liked it! Also, please make sure to tag me on Instagram!

    Answers to your baking questions

    Over the years, many of you have asked me questions about:

    • baking in grams
    • adjusting oven temperatures
    • what kind of salt to use
    • and many more!

    I've curated and answered them all for your easy reference in this frequently asked questions post!

    Recipe For Honey Rice Bubble Slice

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    rice bubble slice on pan with parchment paper

    Rice Bubble Slice

    5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 22 reviews
    • Author: Erin Clarkson
    • Prep Time: 15 minutes
    • Total Time: 1 hour
    • Yield: 16 servings 1x
    • Category: Bars and Slices
    • Method: No Bake
    • Cuisine: New Zealand
    Print Recipe
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    Description

    Rice Bubble Slice is the New Zealand version of Rice Krispie Treats without marshmallow. Made with honey, it is quick and easy to make and tastes super nostalgic.


    Ingredients

    Scale
    • 150g rice bubbles or rice krispie cereal
    • 180g granulated sugar
    • 180g unsalted butter, cold from the fridge is fine
    • 60g honey
    • ½ tsp vanilla bean paste, optional
    • Pinch of salt (leave out if using salted butter)


    Instructions

    1. Grease and line an 8" (20cm) square pan with parchment paper, leaving the parchment extending over the sides of the pan to form a sling. Secure with binder clips if desired. 
    2. Place the rice bubbles into a large bowl. 
    3. In a heavy bottomed saucepan, combine the sugar, butter, and honey.
    4. Place over medium heat and heat, stirring often with a spatula, until the butter melts and the mixture comes to a boil. 
    5. Reduce the heat slightly and continue to cook the mixture for 2 and a half minutes, stirring with a rubber spatula.
    6. Remove from the heat and add the vanilla and salt and mix to combine, then pour the caramel mixture over the rice bubbles. 
    7. Stir well until the rice bubbles are evenly coated.
    8. Transfer the mixture to the prepared pan and smooth down with a spatula. If you would like to get it extra flat you can take a piece of parchment paper and use it to flatten down the top surface. 
    9. Leave the rice bubble slice to set either at room temperature or in the fridge. When it is close to being cool (after about 30 to 45 minutes), slice into pieces using a sharp knife. 
    10. Store either in the fridge or at room temperature in an airtight container. Rice bubble slice will keep for a few days but it is best eaten in the first 1-2 days.

    Did you make this recipe?

    Tag @cloudykitchen on Instagram and use the hashtag #cloudykitchen

    Key Ingredients

    • Caramel
    • Honey
    « 10 Minute Cream Cheese Frosting for Cinnamon Rolls
    Quick DIY Cinnamon Sugar Recipe (Perfect Ratio) »

    Filed Under: Holiday Cookies, New Zealand Recipes, No-bake Bars Tagged With: Egg Free

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      Comments

    1. Stacy says

      March 27, 2022 at 6:31 pm

      Delicious!!

      Reply
    2. caribou says

      March 27, 2022 at 6:32 pm

      My new favorite 🙂

      Reply
      • Imee says

        March 27, 2022 at 7:15 pm

        Can I add melted chocolate on top?

        Reply
        • Erin Clarkson says

          March 27, 2022 at 7:51 pm

          I haven't tried but I don't see why not!

          Reply
        • Jennifer Mathias says

          May 10, 2025 at 7:04 am

          I would love to have this converted to American measurement

          Reply
          • Erin Clarkson says

            May 10, 2025 at 4:29 pm

            Hi, you're welcome to google the measurements to convert it to your preferred measuring style 🙂

            Reply
    3. Sherri says

      March 28, 2022 at 9:35 pm

      Very good. I just made it today. I like that it has honey instead of marshmallows.

      Reply
    4. Adina says

      March 29, 2022 at 10:11 am

      Wanted a change from our brown butter marshmallow treats so tried this. Made a miso honey caramel which turned out amazing! So delicious and easy!

      Reply
      • Erin Clarkson says

        March 30, 2022 at 9:07 pm

        Ooooh yum! That sounds so good!

        Reply
    5. Cindy says

      April 02, 2022 at 9:16 pm

      These are so easy to make and 1000 times better than marshmallow-based ones. Caramel, crispy goodness. Thank you, Erin!

      Reply
    6. Karen says

      April 25, 2022 at 8:33 pm

      Easiest treat of my life. Yummmm!

      Reply
    7. Sophie says

      July 22, 2022 at 6:06 am

      This is the taste of every Kiwi kids childhood !! Loved making this for my boys. That honey and butter is so good.

      Reply
    8. KrazeeKiwi says

      November 19, 2022 at 8:17 pm

      Brings back memories.
      Thanks for the recipe.
      Did you know that if you vary the ratio of sugar to honey, keeping the total combined weight the same, you can adjust the crunchiness of these.
      I.e. 120g sugar:120g honey will give a chewier bar.
      But don't go too far down the scale or they won't hold together.

      Reply
      • Erin Clarkson says

        November 20, 2022 at 3:19 am

        Hi! Yess you can also cook the sugar syrup for longer if you want them crunchier! These ones are already super chewy!

        Reply
    9. Amy says

      January 26, 2023 at 11:04 pm

      Made this today. Yummo. So quick and easy. It is a typhoon outside so refused to go out and buy white sugar so made it with brown sugar. Winner!

      Reply
    10. Marcus Lee says

      February 28, 2023 at 11:44 pm

      I made this and the flavor was great! I really like that it doesn’t use marshmallows. I had a problem with the bars falling apart though. Could that be solved by pressing on the pan more? Do you have any other suggestions? Thanks!

      Reply
      • Erin Clarkson says

        March 01, 2023 at 5:12 pm

        Hi! Were they crumbly or soft falling apart? If they were crumbly, you may have cooked the caramel part a little too long! If they were too soft it could be not cooked enough 🙂

        Reply
        • Marcus says

          March 05, 2023 at 4:57 pm

          Soft and falling apart. Like I picked up a piece and it would fall apart a bit.

          Is there any visual cue that I can look for to tell if I’ve cooked it long enough? Thanks!

          Reply
          • Erin Clarkson says

            March 09, 2023 at 6:25 pm

            I usually go by timing! I can re make them at some point and temp my mixture 🙂

            Reply
    11. Hayley says

      March 07, 2023 at 12:55 am

      These took me back to my childhood. So good!

      Reply
    12. Alana says

      May 17, 2023 at 3:54 am

      I made this tonight along with the ginger caramel slice. Soooo good. Highly recommend making a double or triple batch.
      Ingredients were all in grams so easy to follow while on the scales + easy to follow instructions.

      Reply
      • Genevieve Jones says

        August 29, 2023 at 4:12 am

        Mine fell apart which was disappointing. Tasted delicious though. Not sure what I did wrong.
        Cloudykitchen is usually my fail safe recipe !

        Reply
        • Erin Clarkson says

          August 29, 2023 at 9:13 pm

          Oh no! If you overcook the mixture a little bit it can get a bit too caramel like which means it sets a bit crumbly!

          Reply
    13. Gemma says

      November 01, 2023 at 4:28 am

      The best rice bubble slice I have made. The vanilla just makes it to much tastier

      Reply
    14. Deanie says

      December 14, 2023 at 7:38 pm

      These brought back me back to my childhood!

      When I was little, if there was ever a bake sale at school, my mum would make Rice Bubble slice and it was always devoured. Unfortunately I lost my mum and her recipe and haven’t had it since I was a little girl. (Everyone seemed to use marshmallows instead of honey!)

      Thankfully I came across this recipe and was able to make a bunch of it for me and a friend! It was such an easy recipe to follow and tasted exactly like mum used to make!

      Reply
    15. Sammie J says

      February 03, 2024 at 2:41 am

      Hello, how do these go frozen and put into lunchboxes? Thank you

      Reply
      • Erin Clarkson says

        February 04, 2024 at 4:04 pm

        I'm not sure sorry!

        Reply
    16. Evie says

      February 17, 2024 at 11:23 pm

      All the childhood memories! Thank you

      Reply
    17. Sophie G says

      March 29, 2024 at 8:00 am

      This was so quick and easy to make! I added sprinkles on the top and they stuck to it really well. I loved the flavour of the honey rather than marshmallow - it reminds me of the cornflake crackles we have in Australia.

      Reply
    18. Rae says

      April 11, 2024 at 6:32 am

      *soft gasp* Finally! Every time I tried to search up the recipe for these things, I'd get the ones with marshmallow stuff in them! I'm so happy to have found proper rice bubble slice again!

      Reply
    19. Alana says

      July 02, 2024 at 4:33 am

      Make this all the time! It's another crowd pleaser!

      Reply
    20. Karen Perez says

      July 07, 2024 at 4:01 am

      Nice and easy! Yummy too.

      Reply
    21. Amanda says

      September 25, 2024 at 6:16 am

      Absolutely delicious! Takes me right back to my childhood - thank you!!

      Reply
    22. Jess says

      February 10, 2025 at 3:04 am

      Family favourite. Great for school lunches

      Reply
    23. Lucy Chippillo says

      April 10, 2025 at 9:18 pm

      Can u use maple syrup or golden syrup instead of honey

      Reply
      • Erin Clarkson says

        April 12, 2025 at 6:39 pm

        I haven't tried it but it should be ok to use golden syrup!

        Reply
    24. Anna McMillan says

      June 14, 2025 at 10:25 am

      Good recipe, thank you.

      Reply
    25. Daniela says

      October 22, 2025 at 12:18 am

      Another perfect recipe of Erin’s. She can do no wrong.

      Reply
    26. Tori says

      March 05, 2026 at 1:59 am

      Made this for a team day and it went down a treat! Super easy and fast, with pantry staple ingredients 🙂

      Reply
    Erin Clarkson Cloudy Kitchen

    HI, I'M ERIN

    My recipes range from quick & easy all the way to complex & impressive. I love the science and process of recipe development almost as much as baking itself. I specialize in rigorously tested recipes that are fun, reliable, and accurate.

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