What are processed herrings called?

Answer 1

Processed herrings are commonly referred to as "pickled herring." This preparation involves curing the fish in a brine solution, often with added vinegar, spices, and sometimes onions or other flavorings. Pickled herring is popular in various cuisines, particularly in Scandinavian and Eastern European dishes, and is often served as an appetizer or part of a seafood platter.