Wine, vinegar, sugar and the spices are mixed and boiled. Add the onions, bring to the boil briefly and allow to cool. Debone, peel and cut the salted herrings into pieces (about 2 fingers` widths ).
Now in a tall jar (1 liter) alternately layer the onions taken from the brine with a slotted spoon and the pieces of herring. Douse the brine so that the herring is covered.
Cover and leave to stand in the refrigerator for about 2 days.