Herring Fillets w Tomatoes&Onion 650g Sledzie po Kaszubsku “Lowell”

Kashubian - Style Herrings In this case, the marinade is cooked instead of raw and is made with onions, tomato concentrate, ground paprika, sugar, bay leaves, and vinegar.

While most śledzie recipes include marinades made with raw ingredients, there is a local variety from northern Poland, namely the Pomeranian area, which places the herring in a marinade made with sautéed onions, tomato, sugar, and spices. This type of dish is known as śledzie po Kaszubsku (Kashubian herrings), and its name was derived from the Kashubians, an ethnic group who inhabited northern Poland before the Slavic arrival.