Lisner: Kashubian-style Herring | Marinated Herring with Vinegar Recipe

Ingredients

• 4-5 country-style herring fillets with onion Lisner
• 2 red oniona
• 3 tablespoons of plum jam
• 3 tablespoons of passata
• 3 tablespoons of ketchup (optional)
• 2 tablespoons of vinegar 10%
• 1 teaspoon of mustardseeds
• 5 tablespoons of rapeseed oil
• 1 bay leaf
• 2 allspice
• roasted pumpkin seeds to taste
• freshly ground pepper to taste