Drain the Schichtkäse overnight in a sieve in the refrigerator
Grease the fat pan (approx. 32 x 39 cm; approx. 3.5 cm deep). Wash and stone the plums. Melt 200 g butter over a mild heat. Mix 275 g flour, 150 g sugar and 1 pinch of salt. Add liquid butter and knead everything into crumbles with the dough hooks of the hand mixer
Cream 175 g butter, 100 g sugar, 2 vanilla sugars and 1 pinch of salt. Stir in 3 eggs individually. Mix 300 g flour and baking powder and stir in portions briefly. Spread on the fat pan. Spread the plums on top
Separate 3 eggs. Stir egg yolks, layered cheese, 150 g sugar and 2 vanillin-sugars until smooth. Beat the egg whites and 1 pinch of salt until stiff, pouring in 50 g sugar. Fold into the cheese cream. Spread on the plums. Sprinkle with crumbles. Bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for 1-1 1/4 hours. Let them cool down. Mix 2 tablespoons sugar and cinnamon and sprinkle over. Serve with cream