Chop the pumpernickel finely. Mix flour, pumpernickel and 75 g sugar. Add egg and butter in pieces. Knead first with the dough hooks of the hand mixer, then with your hands to a smooth dough
Grease a springform pan (26 cm Ø) and dust with flour. Put the dough into the form and press it to a base with a small rim. Put baking paper in the tin and spread dried peas on top
Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 20 minutes. Remove baking paper with dried peas. Bake at the same temperature for another 10 minutes. Let cool down on a cake rack
Wash the cherries, remove the stalks, halve and stone them. Soak gelatine in cold water. Bring jam and kirsch to the boil and spread on the base. Mix quark, 75 g sugar and vanillin sugar, squeeze gelatine and dissolve over a warm water bath. Mix the gelatine with 3 tbsp. quark mixture, stir into the remaining quark mixture and chill for approx. 5 minutes until the mixture starts to gel. Whip the whipped cream with the whisk of the hand mixer until stiff. Stir a good half of the cherries into the quark mixture, fold in the cream. Pour the mixture into the mould, spread loosely with a tablespoon. Cover with the remaining cherries. Chill the cake for about 3 hours.
waiting time approx. 3 1/4 hours