Grease a springform pan (28 cm Ø and about 7 cm high). Knead 250 g flour, 100 g sugar, 1 packet of vanilla sugar, 1 pinch of salt, 2 eggs and 100 g butter in pieces, first with the dough hooks of the hand mixer and then briefly with your hands until smooth.
Pour into the mould and press down to a smooth base with lightly floured hands. Chill for about 30 minutes. Pre-bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 15 minutes and then allow to cool.
Separate 6 eggs. Cream 150 g butter, 150 g sugar and 1 packet of vanilla sugar. Stir in the egg yolks bit by bit. Stir in quark, liquid cream and pudding powder. Beat the egg whites and 1 pinch of salt until stiff.
Approx. 1⁄4 Fold the beaten egg white into the curd mixture. Then fold in the remaining beaten egg white. Spread on the short pastry.
Stir the fruit spread until smooth, fill into the freezer bag and cut off a small corner at the bottom. Spray the cheese mixture in a spiral shape and pull it with a fork several times through approx. 1⁄3 of the cheese mixture so that a marble pattern is created.
Bake in the preheated oven at the same temperature on the lowest shelf (gas: see oven manufacturer) for approx. 75 minutes (cover after approx. 1 hour if necessary). Leave to cool for approx. 1 hour with the oven door slightly open.
Remove from the edge with a knife and leave to cool in the mould for about 4 hours. Dust with icing sugar and decorate with raspberries. Whipped cream tastes good with it.