Fish Soup

A traditional Italian fish soup contains shellfish, which is not kosher. This version, using only kosher fish, is another example of the way Italian Jews have adapted a local recipe to their dietary restrictions. If you would like to further extend their inventiveness and make this a thrifty recipe, as at the time of the ghetto, use only fish heads and bones, keeping the fillets for another dish. Here, I use all parts of the fish and cook the fillets in the soup just before serving, which i