Soak the gelatine in cold water. Whip the cream until stiff. Whip the egg and yolk with 50 g sugar until creamy. Squeeze out the gelatine, dissolve it and stir into the egg mixture. Carefully fold in the apple puree and cream, refrigerate for 3 hours.
Boil the elderberry juice with 100 ml of water and 20 g of sugar. Mix the pudding powder with 3 tablespoons of cold water, stir into the juice, boil for 2 minutes, then allow to cool. 1 Peel, quarter and core the apple and cut into wedges. Steam in 20 g fat with 10 g sugar for about 5 minutes. Pour a mirror on the plates with the juice. Cut the dumplings from the apple foam and place on the elderberry sauce. Garnish with the apple wedges.