Herring fillet soak for a few hours that were not too salty. Cut into small pieces.
Peel the onions, cut into cubes or półtalarki.
Each piece of herring to smear on both sides with mustard. On the bottom of the jar put a layer of onions, sprinkle with lemon juice, sprinkle with curry, to arrange herring and pour the oil. And so to the end until the ingredients. On the top should be onions.
Close the jar and let stand for 24 hours. to the refrigerator.
When I made these herring for the first time not received even the evening, let alone speak the next day.
I recommend and Bon appétit.