Wash and drain the elderberries and remove them from the umbels with a fork. Bring to the boil in a pot with 1/2 l water, cinnamon sticks, cloves and lemon peel. Simmer covered at low heat for about 15 minutes.
Pour the liquid together through a sieve into a pot, squeezing the berries well (or turn the mixture through the liquor in portions). Fill up to approx. 1 l with apple juice.
Bring milk, fat and 1 tablespoon of sugar to the boil. Sprinkle in semolina and stir until the mixture comes off the bottom of the pot as a lump. Remove from the heat and let it cool down a little. Stir in the eggs one after the other. Form approx. 24 dumplings with 2 tablespoons of the semolina mixture, put them into boiling salted water and let them simmer at low heat for approx. 10 minutes (the water must not boil anymore).
Peel, quarter, core and finely dice the apple. Boil elderberry juice, 60-70 g sugar and lemon juice in a pot. Stir starch and a little cold water until smooth. Stir into the soup and bring to the boil again.
Simmer apple pieces in the soup at low heat for about 2 minutes. Lift out semolina dumplings, drain and add to the soup.