Weetbix Marshmallow Slice

User Reviews

5

10 reviews
Excellent
  • Prep Time

    10 mins

  • Cook Time

    20 mins

  • Total Time

    30 mins

  • Servings

    24 squares

  • Calories

    144 kcal

  • Course

    Dessert

  • Cuisine

    Australian

Weetbix Marshmallow Slice

The Weetbix Marshmallow Slice combines a crunchy base made from crushed weetbix, brown sugar, butter, self-rising flour, and desiccated coconut with a fluffy marshmallow topping. The base is baked to set before the light, whipped marshmallow layer, prepared from sugar, water, gelatin, and optional coloring and sprinkles, is spread on top. The contrast between the chewy cereal base and the airy topping creates a unique texture and flavor.

Description

Weetbix Marshmallow Slice features a biscuit-like base made by baking a mixture of crushed weetbix, brown sugar, butter, self-rising flour, and desiccated coconut. This base provides a firm, slightly crumbly texture with subtle sweetness and coconut undertones. Once cooled, the base is topped with a soft, fluffy marshmallow layer made by boiling sugar, water, and gelatine, then whipping the mixture until light and airy. Optionally, food coloring and sprinkles add visual appeal to the topping.

The final slice balances the slightly chewy, rich base with the sweet, melt-in-the-mouth marshmallow topping. It's cut into squares or bars and typically served as a sweet treat or dessert slice. The recipe specifies cooling times which are key to achieving the right texture for both layers before combining them.

To time preparation effectively, the marshmallow topping is made while the base is baking, so they’re both ready to be combined after resting roughly half an hour. After assembling, store the slice in an airtight container refrigerated for up to five days to maintain freshness.

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Ingredients

Servings

Base

  • 3 weet-bix or 50 grams of another similar wheat-based cereal, crushed
  • ½ cup brown sugar
  • 190 grams butter
  • 1 cup self-rising flour 130 grams) (or same weight of plain/all purpose flour + 2 teaspoons baking powder, sifted
  • ¾ cup desiccated coconut (60 grams)

Marshmallow Topping

  • 1 cup sugar (caster or white)
  • 1 cup water
  • 1 tablespoon gelatine (or substitute agar agar if you prefer a vegetarian option here)
  • 2-3 drops food colouring optional, pink
  • 2-3 tablespoons Sprinkles optional, or flaked coconut

Instructions

Base

  1. Pre-heat oven to moderate (180 degrees celsius, fan-forced).
  2. Grease a slice tin and line with baking paper, leaving excess on the sides to lift out slice once cooked.
  3. Crush weetbix into a bowl.
  4. Add remaining dry ingredients to bowl and stir to combine.
  5. Melt butter and add to dry ingredients. Mix well.
  6. Press mixture into slice tin with hands and even the top surface using the back of a spoon.
  7. Cook for 15 minutes.
  8. Allow to cool before adding marshmallow topping.

Marshmallow Topping

  1. Place water, sugar and gelatine into a saucepan. Place on low heat and stir to dissolve sugar and gelatine.
  2. Bring to the boil and boil for 5 minutes. (You should only need very low heat to boil)
  3. Let cool for half an hour before beating (starting on low speed and moving to high speed) for about 5 minutes or until mixture is light and fluffy.
  4. Add food colouring if you are opting to colour the marshmallow layer and mix again until colour is even throughout mixture.
  5. Pour onto top of cooled base and use a plastic spatula to spread out evenly.
  6. Add sprinkles or flaked coconut to top of marshmallow if you're opting to add these.
  7. Allow to set in the fridge for about 2 hours.
  8. Lift slice from tray using the overhanging paper. Cut slice into squares using a sharp knife.
  9. Store slice in an airtight container in the fridge.

Notes

  • Cool both the base and marshmallow topping for about 30 minutes before combining to ensure proper texture.
  • Prepare the marshmallow while the base is baking to coordinate timing for assembly.
  • Store the slice in an airtight container in the refrigerator for up to five days.

Nutrition Information

Show Details
Calories 144kcal (7%) Carbohydrates 18g (6%) Protein 1g (2%) Fat 8g (12%) Saturated Fat 6g (30%) Polyunsaturated Fat 0.3g (2%) Monounsaturated Fat 2g (10%) Trans Fat 0.3g (15%) Cholesterol 17mg (6%) Sodium 55mg (2%) Potassium 29mg (1%) Fiber 1g (4%) Sugar 13g (26%) Vitamin A 201IU (4%) Vitamin C 0.04mg (0%) Calcium 8mg (1%) Iron 0.4mg (2%)

Nutrition Facts

Serving: 24squares

Amount Per Serving

Calories 144 kcal

% Daily Value*

Calories 144kcal 7%
Carbohydrates 18g 6%
Protein 1g 2%
Fat 8g 12%
Saturated Fat 6g 30%
Polyunsaturated Fat 0.3g 2%
Monounsaturated Fat 2g 10%
Trans Fat 0.3g 15%
Cholesterol 17mg 6%
Sodium 55mg 2%
Potassium 29mg 1%
Fiber 1g 4%
Sugar 13g 26%
Vitamin A 201IU 4%
Vitamin C 0.04mg 0%
Calcium 8mg 1%
Iron 0.4mg 2%

* Percent Daily Values are based on a 2,000 calorie diet.

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