Separate eggs. Beat the egg whites until stiff, then add 125 g sugar. Stir in egg yolk. Mix flour, starch and baking powder. Sieve portions onto the egg mixture and fold in. Grease the bottom of a springform pan (26 cm Ø). Fill in the sponge cake and smooth it down. Bake in a preheated oven (electric cooker: 200 °C/ convection oven: not suitable/ gas: level 3) for 20-25 minutes. Take out, let it cool down a little, remove from the tin and let it cool down completely.
Set aside some nice raspberries for decoration. Heat the rest of the raspberries briefly and pass through a sieve. Put 2-3 tablespoons of puree aside for decorating. Soak gelatine in cold water. Quarter 100 g confectionery. Cut the sponge cake twice. Cover the bottom with a cake ring or springform pan rim. Beat 200 g cream and 50 g sugar until stiff. Squeeze 3 sheets of gelatine, dissolve lukewarm and stir into 1/3 of the raspberry puree. Fold in the cream and spread on the base. Place the second base on top. Squeeze out 2 sheets of gelatine and dissolve lukewarm. Whip 200 g cream and vanillin sugar until stiff. Stir in the gelatine. Fold in confectionery and spread on the base. Place the last cake base on top. Squeeze 4 sheets of gelatine, dissolve lukewarm and stir into the rest of the raspberry puree.
Fold in the cream and spread on the base. Place the second base on top. Squeeze out 2 sheets of gelatine and dissolve lukewarm. Whip 200 g cream and vanillin sugar until stiff. Stir in the gelatine. Fold in confectionery and spread on the base. Place the last cake base on top. Squeeze 4 sheets of gelatine, dissolve lukewarm and stir into the rest of the raspberry puree. Beat 200 g cream and 75 g sugar until stiff. Fold in raspberry puree and spread on the last cake layer. Chill for about 1 hour. Remove from the cake ring. Whip 250 g cream until stiff. Fill 3 tablespoons of cream into a piping bag with star-shaped spout. Spread the rest of the whipped cream on the cake rim. Sprinkle with coloured sugar. Decorate the surface of the cake with a few drops of cream and raspberry puree, the remaining confectionery and raspberries
Beat 200 g cream and 75 g sugar until stiff. Fold in raspberry puree and spread on the last cake layer. Chill for about 1 hour. Remove from the cake ring. Whip 250 g cream until stiff. Fill 3 tablespoons of cream into a piping bag with star-shaped spout. Spread the rest of the whipped cream on the cake rim. Sprinkle with coloured sugar. Decorate the surface of the cake with a few drops of cream and raspberry puree, the remaining confectionery and raspberries
waiting time approx. 2 hours