Soak the gelatine. Place the sponge cake base on a cake plate and surround with a springform ring. Separate the eggs. Mix cream cheese, egg yolk, yoghurt, sugar, lemon peel and juice.
Squeeze out the gelatine, dissolve and fold into the cream. Beat egg whites until stiff and fold in. Spread the cream on the sponge base until smooth. Refrigerate the cake for approx. 2 hours in the refrigerator. Decorate the cake with fruit.
Results in about 12 pieces.