Wash the currants and pluck them from the panicles. Melt the fat for the dough. Fill 375 g flour, sugar and vanillin sugar into a bowl. Pour in the fat, using the dough hooks to make crumbles. Add 1 tablespoon of flour and shake in the bowl.
Fill half of the dough crumbles into a greased springform pan (26 cm Ø) and press down firmly. Melt the fat for the filling. Separate the eggs. Beat the egg white until stiff, add 25 g sugar. Mix egg yolk, quark, remaining sugar, lemon peel and semolina. Stir in fat, fold in beaten egg white. Spread the quark mixture on the crumble base. Spread half of the prepared currants on top. Mix the remaining crumbles, flour and currants and sprinkle on top. Bake in the preheated oven (electric: 200 °C/ gas: level 3) for 50-55 minutes.
Spread the quark mixture on the crumble base. Spread half of the prepared currants on top. Mix the remaining crumbles, flour and currants and sprinkle on top. Bake in the preheated oven (electric: 200 °C/ gas: level 3) for 50-55 minutes. Let cool off well. Serve sprinkled with hail and icing sugar. Results in about 16 pieces