Banana Walnut Sponge Cake

Instead of the usual banana walnut bread/cake, a lighter and fluffy textured cake would be nice for a change. To make a light and fluffy sponge cake, a water bath is commonly used during baking. The egg white should be beaten to a firm peak, where the meringue will hold when the whisk is lifted but the tip will fall back slightly. A teaspoon of lemon juice is also used to stabilise the egg white.

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Banana Walnut Sponge Cake
Course: Cakes
Cuisine: Western
Keyword: Banana Walnut Sponge Cake
Author: Shiokman Eddie
  • 200 g overripe bananas blended
  • 6 egg yolks
  • ½ tsp salt
  • 20 g caster sugar
  • tsp vanilla extract
  • 65 g cooking oil
  • 150 g self raising flour
  • 20 g corn flour
  • 6 egg whites
  • 50 g caster sugar
  • 1 tsp lemon juice
  • walnuts for toppings
  1. Cut and blend overripe bananas finely.
  2. Add salt, sugar, vanilla extract, oil to a bowl of egg yolks and whisk thoroughly.
  3. Sift self raising flour and corn flour into the bowl.
  4. Add blended bananas and mix well.
  5. In a separate bowl, whisk egg white and add sugar (in 2 batches) and lemon juice. Whisk until it reaches a firm peak.
  6. Add ⅓ of the meringue to the banana flour mixture first and mix.
  7. Pour the mixture into the rest of the meringue and fold gently.
  8. Line an 8 inch round pan with baking paper and slowly pour in the batter.
  9. Tap the pan on a hard surface to remove large air bubbles.
  10. Arrange walnuts on the top in any way you like.
  11. Prepare a larger pan filled with hot water (about 1 inch level) for the pan with batter to sit in.
  12. Bake in a preheated oven (lowest rack) at 150C for 20 mins. Then lower the temperature to 140C and bake for another 50 to 60 mins until golden brown. Cake is done when a skewer inserted in the centre comes out clean.
  13. Remove cake from the oven and gently press the top of the cake and it should bounce back.
  14. Unmould cake and let it cool on a wire rack.
Recipe Notes

You could add more sugar if the banana used is not so sweet.

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