Soak the rolls in cold water. Peel and finely chop the onion. Knead with minced meat, squeezed out roll and 1 egg. Season with salt and pepper. Form approx. 12 dumplings with moistened hands
Put the dumplings in about 1 l boiling salted water and let them simmer for about 10 minutes. Remove the dumplings. Sieve about 1/2 l broth
Fry the flour in hot fat until light yellow. Stir in stock and 200 ml milk. Bring everything to the boil and simmer for about 5 minutes. Whisk 5 tbsp. milk and 1 egg yolk and stir into the sauce (do not boil any more!). Add capers. Season to taste with salt, pepper and lemon juice
Heat the dumplings in the sauce. Drain the beetroot. Serve both. Serve with boiled potatoes
Drink: cold beer