If possible, put on disposable gloves, as black salsifies turn brown and sticky milky juice escapes during peeling. Brush the black salsifies under running water.
Pour 1/2 l cold water and vinegar into a bowl. Peel, wash and cut the black salsifies into pieces and immediately put them into the vinegar water so that they do not turn brown.
Drain the black salsifies. Cover them and cook in boiling salted water with 4 tbsp. milk and 2 tbsp. lemon juice for 15-18 minutes. Check with the tip of a knife whether they are soft.
In the meantime melt butter in a pot. Stir in flour and sweat lightly. Add 200 ml water and 1/4 l milk while stirring constantly. Bring to the boil, stir in the stock and simmer for 5 minutes while stirring.
Wash the chops and pat them dry. Heat lard in a large pan. Fry the chops for 3-5 minutes on each side. Season with pepper and a little salt. Wash parsley, shake dry and chop.
Season the sauce with salt, pepper and possibly lemon juice. Heat drained black salsifies in the sauce for 2-3 minutes. Serve with the chops. Sprinkle with parsley. Boiled potatoes taste good with it.