Sponge Cake Biscuits

Makes one tray of 30 x 40 cm. Use ¾ recipe for a 22 cm spring form tray (about 6 cm thick).


  • 420 g flour
  • 2 EL cornstarch
  • 2 packets baking powder
  • 240 g sugar
  • Vanilla
  • Zest of 2 organic oranges or lemons
  • 170 ml oil (e.g. sunflower)
  • 420 ml soda water
  • For chocolate biscuit: 30-50g cocoa powder


STEP 1: Preheat oven to 180° (upper and lower heat). Mix the sieved flour and the other dry ingredients with a whisk.

STEP 2: Add oil and soda water and mix quickly, stirring only 10-15 times. Small lumps are ok and will dissolve while baking.

STEP 3: Transfer to baking try and bake on the middle rack for 25-30 minutes. Leave in the tray to cool down.

For tiramisu, cut into rectangular biscuits and bake again at low heat until the biscuits are completely dry.

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