A delicious seafood recipe from Polish cuisine. Soak herring in cold water for at least 1 hour. If very salty, repeat, changing the water each time. Drain thoroughly and slice herring into bite-size pieces. Place…How to easily make Sledz w Oleju (Polish Herrings)?Preparing this delicious recipe will only take you 30 minutes. It is a perfect and healthy option to enjoy with your family or friends. Below you will find the ingredients and the detailed step-by-step instructions. Sledz w Oleju (Polish Herrings) A delicious seafood recipe from Polish cuisine. Soak herring in cold water for at least 1 hour. If very salty, repeat, changing the water each time. Drain thoroughly and slice herring into bite-size pieces. Place… 8 Herring1 sliced Onion1/2 cup Olive Oil1 tsp Allspice1 tsp Pepper1 Bay Leaf Soak herring in cold water for at least 1 hour. If very salty, repeat, changing the water each time.Drain thoroughly…