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Chocolate Biscuit Slice



24 piece(s)

Slice base

  • 250 grams Milk arrowroot biscuits
  • 110 grams raw sugar
  • 125 grams Butter
  • 1 teaspoon vanilla esence
  • 1 1/2 tbsp cocoa powder
  • 1 egg


  • 200 grams raw sugar
  • 10 grams cocoa powder
  • 20 grams Butter
  • 15 grams hot water
  • 6
    Preparation 30min
  • 7
  • 8
    • Appliance TM 5 image
      Recipe is created for
      TM 5
      Please note that the TM5 mixing bowl has a larger capacity than the TM31 (capacity of 2.2 liters instead of 2.0 liters for TM 31). Recipes for the Thermomix TM5 may not be cooked with a Thermomix TM31 for safety reasons without adjusting the quantities. Risk of scalding by spraying of hot liquids: Do not exceed the maximum filling quantity and observe the filling level markings of the mixing bowl!

Recipe's preparation

  1. Place biscuits in to bowl and process on speed 5 for 5 seconds. Transfer into a bowl and set aside.

  2. Place 110g raw sugar into bowl and process on speed 10 for 6 secconds. 

  3. Add 125g butter cut into cubes, cocoa powder and vanilla essence. Process on speed 5 for 5 seconds. 

  4. Melt butter mixture at 80 degrees on speed 1 for 3 minutes. Scrape mixture off blades.

  5. Add the egg and mix at 80 degrees on speed 3 for 2 minutes, to thicken the mixture.

  6. Add the crushed biscuits and mix on reverse on speed 3 for 10 seconds.

  7. Place mixture into prepared slice tray and spread out evenly.

  8. Icing
  9. Place raw sugar into mixing bowl and process on speed 10 for 20 seconds. 

  10. Add cocoa powder, butter and hot water. Mix on speed 5 for 10 seconds. Check consistency as you may need to add more warer.

  11. Spread icing onto top of slice and decorate with your favourite topping, sprinkles, nuts, desecated coconut.

  12. Place the slice in the fridge for 30 minutes or the freezer for 10 minutes or until firm to touch. Turn out onto a board and cut into pieces. Enjoy.


Accessories you need

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This recipe was provided to you by a Thermomix ® customer and has not been tested by Vorwerk Thermomix ® or Thermomix ® in Australia and New Zealand.
Vorwerk Thermomix ® and Thermomix ® in Australia and New Zealand assume no liability, particularly in terms of ingredient quantities used and success of the recipes.
Please observe the safety instructions in the Thermomix ® instruction manual at all times.

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  • So glad someone has converted this recipe to...

    Submitted by Steph-Davies on 26. March 2019 - 18:10.

    So glad someone has converted this recipe to Thermo, worked a treat ☺️ Thank you

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