It's a Yiddish-rooted dish that turns humble salted herring into something closer to pâté — a sign of Odesa's history as one of the most Jewish cities in the old Russian Empire.
Salted herring is minced with onion, apple, boiled egg, and butter into a smooth, tangy spread. It's piled onto dark rye bread and sold by the piece at Odesa's Privoz market food counters.