Wash the meat and pat dry. Fry in hot oil. Add 1/8 l water. Cover and cook for 45 minutes.
Wash the potatoes and boil in water for about 25 minutes. Drain, peel and mash. Knead semolina, approx. 20 g flour and egg yolk and season. Form finger-thick rolls (potato noodles) from the dough with floured hands. Leave to stand in plenty of boiling salted water for 2-3 minutes until they float to the top
Peel and chop 1 onion. Fry in 20 g of hot fat. Sweat 20 g flour in it. Deglaze with 1/8 l water, milk and some smoked pork stock. Bring to the boil, stir in broth. Simmer for about 5 minutes, season to taste. Wash and chop the chives. Stir into the sauce with sour cream
Rest peel and chop the onions. Heat 20 g fat. Sauté onions in it. Fry the potato noodles in it. Serve everything
Drink: cold beer