Wash the potatoes and cook in plenty of boiling water for about 20 minutes. Rinse under cold water, drain, peel and roughly chop. Heat 3 tablespoons of oil in two large pans and fry the potatoes for 15-20 minutes, turning them over. Season to taste with salt, pepper and paprika
Clean and trim the mushrooms and, depending on their size, possibly halve them. Peel onions and cut into strips. Put potatoes in a pan. Heat 3 tablespoons of oil in the empty pan. Fry the mushrooms for about 8 minutes while turning. After about 4 minutes add onion strips. Season to taste with salt and pepper
Wash the chives, shake dry. Stir curd, vinegar and milk until smooth. Season with chives, except for a little bit for sprinkling, salt, pepper and sugar. Mix the fried potatoes and mushroom pan and serve. Sprinkle with chives. Add the herb quark