Select raspberries, blackberries and currants. Measure out 500 ml of cold water. Stir red fruit jelly powder with 75 g sugar and 6 tablespoons of the water until smooth. Bring the remaining water to the boil, remove from the heat and add the mixed powder. Bring to the boil again, remove from the heat, fold in fruit and allow to cool slightly. In the meantime beat the eggs, 375 g sugar, vanillin sugar and 1 pinch of salt with the whisk of the hand mixer until frothy.
Add butter-vanilla flavouring, quark, mascarpone, cream, semolina and cheesecake aid and stir well. Pour the cheesecake mixture onto a greased and floured baking tray and smooth it down. Press in dents with a tablespoon and fill them with groats in a streaky pattern. Bake in a preheated oven (electric cooker: 175 °C/ convection oven: not suitable/ gas: level 2) for approx. 1 hour. Cover after 3/4 of the time if necessary. Decorate with currant leaves if necessary.