For the base, stir the fat and 175 g sugar until creamy. Stir in the eggs one after the other. Mix flour and baking powder. Alternately stir in with the milk. Spread the dough on a greased baking tray (inside: 37 x 32 cm; outside: 44 x 37 cm). Bake in the preheated oven (electric: 200 °C/ gas: level 3) for about 20 minutes, let cool down. Warm up the jam a little and spread it on the base.
For the cream, soak gelatine in cold water. Stir sour cream and 45g sugar until smooth. Squeeze the gelatine, dissolve over low heat and stir into the cream. Put it in a cold place until it starts to get firm. In the meantime, whip cream and vanilla sugar until stiff. Fold into the cream and spread evenly on the base. Wash and clean the strawberries and cut them into quarters lengthwise. Quarter melons, remove seeds. Cut out some fruit balls from the galia melon for decoration. Cut remaining melon flesh into small pieces. Drain the mandarins and collect the juice. Spread the prepared fruit over the cream. Fill up mandarin juice with water to 1/2 litre.
Wash and clean the strawberries and cut them into quarters lengthwise. Quarter melons, remove seeds. Cut out some fruit balls from the galia melon for decoration. Cut remaining melon flesh into small pieces. Drain the mandarins and collect the juice. Spread the prepared fruit over the cream. Fill up mandarin juice with water to 1/2 litre. Mix the icing powder and remaining sugar in a pot. Add liquid while stirring constantly, bring to the boil. Spread over the fruit. Chill for about 1 hour. Cut the cake into about 16 pieces. Decorate as you like with cream dab, melon balls, mint leaves and some melted jam
Mix the icing powder and remaining sugar in a pot. Add liquid while stirring constantly, bring to the boil. Spread over the fruit. Chill for about 1 hour. Cut the cake into about 16 pieces. Decorate as you like with cream dab, melon balls, mint leaves and some melted jam