Separate eggs. Beat egg whites until stiff. Add sugar and vanillin sugar. Stir in egg yolk. Mix flour and starch, sieve over it and fold in. Line the bottom of a springform pan (26 cm Ø) with baking paper.
Fill in the sponge mixture and smooth it down. Bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for approx. 15 minutes. Let cool off. Cut the sponge cake base once. Warm up the raspberry jelly and spread on the bottom cake base.
Put the floor on top. Beat 200 ml milk and dark powder for 3 minutes until creamy. Spread over the dough. Chill for 1 hour. Sort the berries. Beat light powder and 200 ml milk for 3 minutes until creamy.
Spread the berries, except for a few for decoration, on the dark cream. Spread light cream on top. Chill for 1 hour. Decorate with the remaining raspberries. Makes about 12 pieces.