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Ultimate Sponge (Recipe Sandra Walker)



12 slice(s)


  • 1/2 teaspoon bicarbonate of soda
  • 1 teaspoon cream of tartar
  • 180 grams custard powder
  • 130 grams caster sugar
  • 5 eggs, seperated (room temp)
  • 1 teaspoon vanilla extract
  • 1 pinch salt, (optional)

  • 1/2 teaspoon bicarbonate of soda
  • 6
    Preparation 15min
  • 7
  • 8
    • Appliance TM 6 image
      Recipe is created for
      TM 6
    • 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!
    • Appliance TM 31 image
      Recipe is created for
      TM 31

Recipe's preparation

    Sponge Cake
  1. Pre-heat oven to 180 degrees
  2. Grease one '20 inch' round cake tin. Line sides with baking paper.
    (extend above tin to allow extra height)
  3. Mill sugar into caster sugar if necessary, 2 seconds, speed 9.
    (clean and dry mixing bowl)
  4. Place the butterfly in the bowl, Add the egg whites and beat.
    2-4 minutes, speed 3 (until stiff) - measuring cap removed.
  5. With the butterfly still rotating - Speed 3
    Add caster sugar 1 teaspoon at a time through lid each side of the butterfly
  6. Ensure caster sugar has disolved 5-7 minutes.
  7. Combine the remaining dry ingredients in bowl (set aside)
  8. With butterfly still inserted - Reduce speed to
    Add yolks one at a time through the hole in the lid.
  9. Remove the butterfly, give the mixture a stir with the spatula.
  10. Add dry ingredients, mix 5 seconds, speed 3.
  11. Scrape down sides of the bowl and mix 3 seconds, speed 3
    (or until combined)
  12. Pour batter into cake tin and place in the oven for 30-40 minutes.
    Cake is ready when a skewer inserted in the middle comes out clean.
  13. Leave the cake in the tin for 5 minutes and then place on a wire rack to cool completely.
  14. Add whipped cream and decorate as you choose.

Accessories you need

  • Butterfly
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  • Spatula TM31
    Spatula TM31
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Can be made in two 20 cm tins.

Decorating ideas
- Dust with icing sugar
- Fill with cream and top with strawberries and cream
- Fill with lemon curd or jam and top with cream or flavoured icing

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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