Grate salt herring, pepper and breaded in flour. Fry the on all sides in vegetable oil for 4-5 minutes. Share on paper towels. Boil the broth with vinegar, sugar and spices. Peel and chop the onion rings and cook for 5 minutes in the marinade. Share herring in a jar, pour the hot marinade. Hide in the fridge. The dish is ready in 2-3 days.