Soak gelatine in cold water. Bring 300 ml of water, sugar and lemon juice to the boil and allow to cool. Rinse and clean blueberries, currants and blackberries. Strip currants from the panicles. Sort the raspberries.
Squeeze the gelatine and dissolve in warm sugar water. Fold in the berries and fill into 4 glasses (200 ml each). Place glasses in a cool place and allow to set. Turn glasses over and arrange red fruit jelly decorated with berries, lemon slices and lemon balm. Serve with vanilla sauce
4-5 hours waiting time