Drain the peaches in a sieve. Mix fat, 250 g sugar and salt with the whisk of the hand mixer. Stir in the eggs one after the other. Mix flour and baking powder and stir in. Finally stir in yoghurt.
Put the sponge mixture into a greased fat pan of the oven (32 x 39 cm) and smooth it down. Spread the peaches evenly on top. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 25-35 minutes. Remove from the oven, place on a cake rack and allow to cool.
Soak gelatine in cold water. Mix quark, vanillin sugar, 50-75 g sugar and lemon juice. Squeeze the gelatine and melt. Stir in 4 tablespoons of cream, then stir into the remaining cream.
Whip cream until stiff and fold in. Carefully fold in 175 g raspberries and spread evenly on the cake. Put the cake in a cool place for 4-5 hours. Cut cake into 24 pieces and decorate with 125 g raspberries