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    Create Bake Make / Slices / Weetbix Slice

    Weetbix Slice

    Published: Mar 19, 2018 · Modified: Feb 4, 2022 by Lauren Matheson ·

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    This easy Chocolate Weetbix Slice recipe is perfect for the entire family! All you need is a few simple ingredients and it then takes less than 10 minutes to put this slice together. This Chocolate Weebix Slice makes the perfect treat for the kids lunchboxes and it is also freezer friendly too. Both regular and Thermomix instructions are included.

    Two pieces of Chocolate Weetbix slice on top of each other.

    Whenever I want to make a chocolate treat for the kids, I turn to either my Nan’s Chocolate Cake or this easy Weet-Bix Slice recipe.  Both are super simple to make (you only need one bowl to mix it all together), they are freezer friendly (yes, even when iced!) and they satisfy our chocolate cravings.

    Why you will love this recipe:

    • Quick to prepare – this slice takes around 15 minutes to put together.
    • Budget friendly – you will just need a few pantry staples to put this recipe together.
    • Freezer friendly – this Chocolate Weetbix Slice can be frozen for up to two months.
    • Perfect for Lunchboxes – the kids will love a piece of this slice in their lunchboxes as a special treat!
    Child's hand reaching for a piece of Weet-Bix slice.

    So while this certainly isn’t the healthiest recipe going around, when it comes to treats, I’d much prefer the kids eat something that we have made versus something we’ve purchased from a store that is full of ingredients we don’t recognise.  If you are looking to make this Weet-Bix Slice that little bit better for the kids, then you can easily omit the chocolate icing and just eat it as is.

    Weetbix Slice Ingredients:

    Please note you will find the full ingredient list and recipe instructions in the recipe card below.

    • Weetbix – you will need approximately 12 Weetbix bars for this recipe. You can also use VitaBrix instead.
    • Butter – either unsalted or salted butter can be used for this recipe.
    • Brown Sugar – caster sugar can also be used, however this will change the consistency of the slice.
    • Cocoa.
    • Egg
    • Desiccated Coconut – I recommend desiccated coconut rather than shredded coconut as it will combine more easily with the other ingredients.
    Two pieces of Chocolate Weetbix slice on top of each other.

    How to Make Chocolate Weetbix Slice:

    1. Crush the WeetBix bars and set aside until needed.
    2. Melt the butter.
    3. Add the crushed WeetBix, brown sugar, cocoa, coconut and egg and mix well.
    4. Place into a slice tray and bake.
    5. Once your slice is completely cool, make the icing and spread over the top.
    collage showing the steps to make Weet-Bix slice.

    Expert Tips:

    • It’s normal for some of the butter to pool on top of the slice when it comes out of the oven.
    • It is important to let the slice cool completely before icing or cutting into pieces, otherwise you might end up with a crumbly, chocolate mess. You can place the slice into the fridge or freezer to speed up the cooling process.
    • This slice can be served un-iced or you can top it with 100s and 100s, desiccated coconut or leave plain.
    • The baked slice can be frozen for up to two months.

    More Easy Slice Recipes:

    • No Bake Lemon Slice
    • Easy Hedgehog Slice
    • 4 Ingredient Clinkers Rocky Road
    • Easy Passionfruit Slice Recipe
    • Nut Free Muesli Slice
    • Classic Caramel Date Slice Recipe
    • Clinkers Slice | 5 Ingredient No Bake Slice
    • Rice Bubbles and Honey Slice | Easy No Bake Recipe
    • Chocolate Coconut Slice
    • 3 Ingredient Rice Bubble Bars Recipe
    Two pieces of Chocolate Weetbix slice on top of each other.

    Chocolate Weetbix Slice Recipe

    This easy Weetbix Slice recipe makes a great treat for the whole family. It's so simple to make, you only need a few ingredients, it can be made using a Thermomix AND it's freezer friendly!!
    4.59 from 29 votes
    Print Recipe Pin Recipe
    Prep Time 15 minutes mins
    Cook Time 20 minutes mins
    Total Time 35 minutes mins
    Course Slices
    Cuisine Australian
    Servings 24 pieces
    Calories 79 kcal

    Equipment

    • 28 x 18 cm slice tray

    Ingredients
      

    • 12 Weetbix
    • ¼ cup cocoa 25 grams
    • ¾ cup brown sugar 130 grams
    • 200 grams butter melted
    • ½ cup desiccated coconut 45g
    • 1 egg

    Chocolate Icing

    • 1 ½ cups icing sugar 225 grams
    • 1 tablespoon cocoa
    • 1 teaspoon butter softened
    • 2 tablespoon boiling water

    Instructions
     

    • Preheat your oven to 170 degrees celsius(fan-forced) and line a 28 x 18cm slice tin with baking paper. Set aside until needed.
    • Place the Weet-Bix into a food processor and pulse until crushed.
    • In a large bowl, add the crushed Weet-Bix, cocoa, brown sugar, melted butter, coconut and egg and mix well to combine.
    • Transfer the mixture to your slice tin and use the back of a spoon to press the mixture firmly into the tray.
    • Place the tray into the oven and bake for 18 to 20 minutes or until firm to the touch.
    • Carefully remove the Weet-Bix Slice from the oven and allow it to completely cool.
    • Once the slice is cool, place all of the ingredients for the chocolate icing into a small bowl and mix until combined and the mixture is smooth.
    • Pour the icing over the top of the slice and use a butter knife to smooth the surface. Decorate with 100s and 1000s.
    • Allow the chocolate icing to set before slicing into pieces and storing in an airtight container.

    Thermomix Instructions

    • Preheat your oven to 170 degrees celsius(fan-forced) and line a 28 x 18cm slice tin with baking paper. Set aside until needed.
    • Place the weetbix into your Thermomix bowl and blitz for 10 seconds on speed 7 to crush. Transfer the crushed weetbix to another bowl and set aside until needed.
    • Without washing the bowl, place the butter into your Thermomix bowl and cook for 3 minutes, 60 degrees, speed 2 to melt.
    • Add the crushed weetbix, cocoa, brown sugar, coconut and egg to your Thermomix bowl and mix for 10 seconds speed 4. Scrape down the sides of your bowl and mix for a further 10 seconds, speed 4.
    • Transfer the mixture to your prepared slice tray and cook for 18 – 20 minutes, you want the slice to be firm to the touch.
    • Allow the Weetbix Slice to completely cool in the tin before preparing the icing. Combine all of the icing ingredients into a bowl and mix until smooth and combined.
    • Pour the icing over the completely cooled slice and use a butter knife to smooth. Decorate if desired
    • Once the icing has set, cut the slice into pieces and enjoy!

    Notes

    • It is normal for some of the butter to pool on top of the slice when it comes out of the oven.
    • It is important to let the slice cool completely before icing or cutting into pieces, otherwise you might end up with a crumbly, chocolate mess. You can place the slice into the fridge or freezer to speed up the cooling process.
    • This slice can be served un-iced or you can top it with 100s and 100s, desiccated coconut or leave plain.
    • The baked slice can be frozen for up to two months.

    Nutrition

    Serving: 0gCalories: 79kcalCarbohydrates: 16gProtein: 1gFat: 2gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gTrans Fat: 1gCholesterol: 8mgSodium: 17mgPotassium: 52mgFiber: 1gSugar: 15gVitamin A: 29IUVitamin C: 1mgCalcium: 20mgIron: 1mg
    Keyword Lunchbox Snacks, Slice Recipes, Thermomix Recipes, Weetbix Slice
    Tried this recipe? Please leave a rating and tag me on Instagram! Mention @createbakemake or tag #createbakemake!

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    Filed Under: Baking, Chocolate, Food for Kids, Lunchbox Ideas, Party Food, Slices, Snacks & Treats, Thermomix, Thermomix Lunch Box Snacks, Thermomix Slices

    Reader Interactions

    Comments

    1. Kylie

      January 28, 2020 at 9:04 pm

      5 stars
      My daughter loved making this quick , easy to follow cake all by herself today! Ready for her first lunchbox at big school

      Reply
      • Lauren Matheson

        January 30, 2020 at 11:00 am

        That is so wonderful, I hope she had a great day at school x

        Reply
    2. Emma Smith

      July 09, 2018 at 8:47 am

      4 stars
      Great recipe! Kids loved it and healthier than normal chocolate slice.

      Reply
      • Lauren Matheson

        July 09, 2018 at 11:06 am

        Yay! Thanks Emma xx

        Reply
    3. Chloe

      July 03, 2018 at 4:07 pm

      It Is a delicious treat and fun, easy for kids to make.

      Reply
      • Lauren Matheson

        July 03, 2018 at 9:52 pm

        Thanks so much Chloe!

        Reply
    4. Anne

      March 24, 2018 at 11:11 am

      What a treat indeed not only is it delicious but I love how easy it is to make. Can’t wait to try this with my son, he would love to try this with different shapes. Thank you.

      Reply
      • Lauren Matheson

        March 26, 2018 at 4:44 am

        Thanks so much Anne, I hope you son enjoys it xx

        Reply
    4.59 from 29 votes (27 ratings without comment)

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