Separate eggs. Beat the egg whites until stiff, gradually add 125 g sugar. Stir in egg yolks. Sift flour, 60 g starch, baking powder and Citroback on top and fold in. Line the bottom of a springform pan (26 cm Ø) with baking paper. Smooth the sponge mixture in it. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 30 minutes. Remove from the oven, let cool for about 10 minutes, remove from the mould, let cool. Soak 4 sheets of gelatine. Stir mascarpone and yoghurt until smooth. Boil up lemon juice, grappa and 75 g sugar. Squeeze the gelatine and dissolve in it. Stir into the mascarpone mixture. Chill for about 30 minutes.
Whip 100 g cream until stiff and chill. Soak the rest of the gelatine. Bring raspberries, 100 ml water and the rest sugar to the boil. Pass the raspberries through a sieve. Whisk the rest of the starch in 1 tablespoon of water and thicken the purée with it. Squeeze the gelatine and dissolve in the hot puree. Chill for about 10 minutes. Cut off approx. 1/3 of the sponge cake as a lid. Cover the base with a cake ring. Fold cream into the mascarpone cream. Pull the puree as streaks through the cream. Spread the cream dome-shaped on the base. Put the lid on top and chill the cake for about 2 hours. Crumble the meringue. Whip the rest of the cream until stiff. Remove cake ring, spread cake with cream. Sprinkle with meringue and raspberries
Results in about 16 pieces
waiting time approx. 2 hours