Knead the flour, 100 g sugar, vanillin sugar, 1 egg and fat in flakes first with the dough hooks of the hand mixer, then with cool hands to a smooth dough. Cover and chill for about 30 minutes.
Rinse sultanas and pat dry. Stir the marzipan with the whisk of the hand mixer until smooth. Stir in 3 eggs one after the other. Stir in almonds and sultanas. Mix sour cream, 50 g sugar, 2 eggs, pudding powder and cream until smooth.
Peel, quarter, core and cut apples into slices. Sprinkle with lemon juice. Roll out the short pastry on a floured work surface in a rectangular shape the size of the fat pan of the oven (32 x 38 cm).
Grease the bottom of the fat pan and put the dough in it. Stir the jam until smooth, spread the short pastry with it. Add marzipan cream and spread. Spread apples on top. Pour the egg custard evenly over it.
Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 40-45 minutes. Let them cool down. Whipped cream tastes good with it.