Melt the butter and let it cool down again. Biscuits are best ground in a universal chopper. Mix 150 g biscuits and butter. Spread them on the bottom of an oil-sprinkled springform pan (20 cm Ø), press them down a little and put them in the fridge. Mix mascarpone, quark, sugar, eggs, lemon juice, starch and semolina. Set aside 1 heaped tablespoon of ground biscuits for decoration.
Fold the remaining ground biscuits into the quark mixture. Spread the mixture on the cold base. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 40 minutes. Then let it cool down well and enclose it with a high cake ring. Whip the cream until stiff. Sprinkle in vanillin sugar and cream setting agent. Stir in liqueur. Spread on the cheesecake and put it in the fridge for about 30 minutes. In the meantime, wash and clean the strawberries, possibly halve them. Warm the jam lukewarm. Carefully loosen the cake ring.
Sprinkle in vanillin sugar and cream setting agent. Stir in liqueur. Spread on the cheesecake and put it in the fridge for about 30 minutes. In the meantime, wash and clean the strawberries, possibly halve them. Warm the jam lukewarm. Carefully loosen the cake ring. Spread the strawberries, sprinkle with the jam. Sprinkle with the remaining ground cookies