For the sponge mixture, cream the fat, 200 g sugar, vanillin sugar and salt. Separate 3 eggs. Gradually add 3 eggs and 3 egg yolks to the fat-sugar mixture and mix well. Mix flour, baking powder and fine orange fruit and stir into the fat-egg mixture with the milk. Pour the dough onto a greased and semolina-spread baking tray (42 x 36 cm) and smooth it down.
Beat the egg white until very stiff. Drizzle lemon juice into it. Finally, pour in the remaining sugar while stirring. Fold in ground hazelnut kernels. Pour meringue into a piping bag with star-shaped spout and spray onto the sponge mixture in a grid pattern. Sprinkle the cake with hazelnut flakes and bake in a preheated oven (electric range: 200 °C/ gas: level 3) for approx. 20 minutes. For the compote, stir starch and 4 tablespoons of juice until smooth. Boil up the rest of the juice, sugar and carved vanilla pod. Stir in the starch. Add the berries and simmer for about 5 minutes.
For the compote, stir starch and 4 tablespoons of juice until smooth. Boil up the rest of the juice, sugar and carved vanilla pod. Stir in the starch. Add the berries and simmer for about 5 minutes. Let the cake and compote cool down. Cut the cake open (makes about 15 pieces). Serve with the compote and vanilla ice cream if desired
Per portion (1 piece of cake plus compote) approx. 1890 kJ/ 450 kcal. E 8 g/ F 23 g/ KH 54 g