Melt 50 g butter in a saucepan. Heat 100 ml of milk lukewarm. Stir yeast and 25 g sugar into the milk. Put 500 g flour in a bowl and make a depression in the middle. Pour yeast milk into the hollow and mix with some flour from the rim. Cover with flour and let it rest for about 15 minutes.
Add salt, egg, 25 g sugar, 150 ml milk, vanillin sugar and liquid butter and knead with the dough hooks of the hand mixer to a smooth dough. Cover and leave to rise in a warm place for about 30 minutes. Melt 125 g butter in a pot. Mix 200 g flour, cocoa and 100 g sugar in a bowl. Add hot butter and knead into crumbles first with the dough hooks of the hand mixer, then with your hands. Put the crumbles in a cool place. Drain cherries well. Line 2 baking trays with baking paper. Knead the yeast dough once more and divide it into 10 equal pieces. Roll out each piece round (10 cm Ø) on a floured work surface. Put 5 thalers on each baking tray and let them rise for about 15 minutes. Spread cherries on it (press in correctly) and sprinkle with crumbles.
Line 2 baking trays with baking paper. Knead the yeast dough once more and divide it into 10 equal pieces. Roll out each piece round (10 cm Ø) on a floured work surface. Put 5 thalers on each baking tray and let them rise for about 15 minutes. Spread cherries on it (press in correctly) and sprinkle with crumbles. Bake the trays one after the other in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 20 minutes. Let them cool down. Dust with icing sugar before serving
1 hour waiting time