Boiled potato zeppelins with curd filling 500 g

Ingredients : Potato weight (80%): boiled potatoes (23%), water, potato starch, potato flakes, rapeseed oil, salt.
Curd filling (20%): curd (90%), wheat flour, salt. Preparation: Put zeppelins in salted boiling water (1.5-2 l) when it rises to the surface, cook for another 10-15 minutes. It is recommended to add 2 teaspoons (15 g) of starch mixed with a small amount of cold water to the boiling water before adding the zeppelins.