Drain the cherries well in a sieve. Melt 100 g butter and let it cool down a little. Put flour, 75 g sugar and salt in a bowl. Add 1 egg and liquid butter and knead into crumbles using the dough hooks of the hand mixer. Mix 150 g sugar and 125 g butter with the whisk of the hand mixer until creamy. Stir in 4 eggs one after the other. Mix the egg liqueur, quark, lemon juice and cheesecake aid.
Stir into the butter egg mixture. Fold in the cherries. Grease a square springform pan (24 x 24 cm) and pour in the quark mixture. Spread crumbles on top. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 60-70 minutes. Remove the cake and let it cool down
4 hours waiting time