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Weetbix Slice Gluten-Free
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Gluten-Free Weet-Bix Slice

This chocolate gluten-free Weet-Bix slice is easy to make, naturally nut and egg-free, lunchbox friendly and freezer friendly. A cheap and cheerful Australian classic made gluten-free.
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: Gluten-Free Snack
Keyword: Gluten-Free Snacks
Servings: 32 squares
Calories:

Equipment

  • Baking pan
  • Oven or Air Fryer

Ingredients 

Weet-Bix Slice:

  • 4 gluten-free Weet-Bix, crushed
  • 1 cup gluten-free self-raising flour *
  • ¾ cup desiccated coconut
  • ¼ cup cocoa powder
  • ½ cup brown sugar
  • 180 grams (6.35 oz) butter, melted
  • 1 teaspoon vanilla extract

Chocolate Icing:

  • 1 cup powdered sugar / icing sugar
  • 1 tablespoons cocoa powder
  • 1 tablespoons butter, melted
  • 2 tablespoons hot water
  • Extra desiccated coconut (optional)

Instructions

  • Preheat oven to 170°C / 340°F and line a square or rectangular pan.
  • Crush 4 gluten-free Weet-Bix, finely (using hands or back of spoon).
  • Add 1 cup gluten-free self-raising flour, ¾ cup desiccated coconut , ¼ cup cocoa powder , and ½ cup brown sugar . Mix to combine.
  • Add 180 grams butter, melted and 1 teaspoon vanilla extract. Stir until a thick mixture forms.
  • Press firmly into prepared pan.
  • Bake 16 to 20 minutes, until set but slightly soft in the centre. Allow to cool completely in the pan.
  • Mix icing ingredients: 1 cup powdered sugar / icing sugar , 1 tablespoons cocoa powder, 1 tablespoons butter, (melted), and 2 tablespoons hot water until smooth and glossy. If too thick for your preference, you can gradually add a sprinkle of more hot water.
  • While still in the pan, spread the icing over slice and sprinkle with coconut if using.
  • Refrigerate 1 hour before slicing.

Notes

*If you only have gluten-free plain / all-purpose flour, you can use that instead, but you will need to add 1 teaspoon gluten-free baking powder. If your gluten-free flour does not contain xanthan gum (most do now), add ¼ teaspoon xanthan gum to help the slice hold together.
Using an air fryer instead of an oven?: air fry at 160°C (320°F) for 10 to 14 minutes (check at 10!), until the slice is set but still slightly soft in the centre.