Mix 400 g flour, yeast, 50 g sugar, vanillin sugar and 1 pinch of salt in a bowl. Melt 75 g butter in a saucepan, add milk and heat lukewarm. Pour into the bowl to mix the flour. Add 1 egg and knead everything with the dough hooks of the hand mixer for 3-4 minutes. Cover and leave to rise in a warm place for about 45 minutes. In the meantime, melt 125 g butter for the crumbles in a pot.
Lightly crumble the Amarettini. Mix 175 g flour, 85 g sugar and 1 pinch of salt, add liquid butter and knead with the dough hooks of the hand mixer. Finally, knead in 1 tbsp. flour and amarettini crumbs. Cover the crumbles and put them in a cool place. Mix quark, 5 eggs, 150 g sugar, pudding powder and semolina. Roll out yeast dough on a little flour in a rectangular shape (approx. 32 x 39 cm). Put it on a greased and flour-dusted fat pan. Spread the quark cream evenly on top. Peel apples and remove the core with an apple corer. Cut apples into rings of about 1 cm thickness. Cover cake with apple rings.
Put it on a greased and flour-dusted fat pan. Spread the quark cream evenly on top. Peel apples and remove the core with an apple corer. Cut apples into rings of about 1 cm thickness. Cover cake with apple rings. Spread crumbles on top. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 20-30 minutes. Let the cake cool down on a cake rack
Waiting time approx. 30 minutes