Cream 250 g fat, 200 g sugar, vanillin sugar, 1/4 of the rind and salt. Stir in 4 eggs individually. Stir in flour, baking powder and milk. Spread the dough into the greased fat pan (approx. 35 x 40 cm)
Melt 50 g fat. Separate 7 eggs. Beat egg white and 50 g sugar until stiff. Mix 200 g sugar, egg yolk, pudding powder, quark, fat and the rest of the lemon. Fold in the beaten egg white. Spread on the dough. Bake in the preheated oven (electric cooker: 175 °C / convection oven: 150 °C/ gas: level 2) for 40-45 minutes. Let it cool down. If necessary, put an aluminium rail around it.
Drain the fruit, fill up the juice with water to 650 ml. Boil up with icing powder and 50 g sugar. Add fruits and spread on the quark. Cool down. Decorate with crème fraîche and pistachios