Line the bottom of a springform pan (26 cm Ø) with baking paper. Separate the eggs. Beat the egg whites, 3 tbsp. cold water and 1 pinch of salt until stiff, adding 150 g sugar and 1 vanillin sugar. Fold in the egg yolks one by one. Sift flour, starch, cocoa and baking powder on top and fold in. Brush into the mould. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/gas: level 2) for approx. 25 minutes. Cooling down
Cut the sponge in half horizontally. Close the cake ring around the lower base. Sprinkle the bottom with cherry brandy. Soak gelatine in cold water. Mix mascarpone, quark, 75 g sugar and 2 vanilla sugars briefly. Squeeze the gelatine, dissolve at low heat. Stir in 3 tbsp. cream, then stir into the rest of the cream. Chill for about 10 minutes until it starts to gel. Whip cream until stiff, fold in
Spread 12 creams on the bottom shelf, place 2nd shelf on top. Spread with the rest of the cream. Chill for at least 2 hours.
Wash the cherries and, except for a few for decoration, remove the stalks and stones. Pile on the cake, leaving 2 cm free around the edge. Mix the icing powder and 1 teaspoon sugar. Stir in 1/4 l cherry nectar. Bring to the boil briefly while stirring. Spread on the cherries. Chill for about 2 hours. Peel off the chocolate with the peeler. Decorate the cake with the rest of the cherries, rolls and icing sugar