Cream butter and 125 g sugar with the whisk of the hand mixer. Stir in the eggs one by one. Mix flour, starch and baking powder, stir in briefly. Fill into a greased springform pan (24 cm Ø), smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 25 minutes, remove from oven and allow to cool.
Sort the raspberries, crush them slightly and spread them on the cake. Stir pudding powder, 40 g sugar and 6 tablespoons milk until smooth. Boil up the rest of the milk. Add the mixed powder while stirring continuously and boil for 1 minute. Spread on the raspberries and let cool. Wash and clean the rest of the berries. Mix red fruit jelly powder, 75 g sugar and 6 tablespoons cherry nectar. Boil up the rest of the juice. Add the mixed powder and bring to the boil while stirring. Fold in prepared berries and spread on the cake.
Wash and clean the rest of the berries. Mix red fruit jelly powder, 75 g sugar and 6 tablespoons cherry nectar. Boil up the rest of the juice. Add the mixed powder and bring to the boil while stirring. Fold in prepared berries and spread on the cake. Place in the refrigerator for about 1 hour. Serve decorated with fresh fruit