Ingredients

• 700 g (approximately 7 pieces) herring fillets from a barrel
• 1 large onion

Marinade

• 2 cups water
• 1/2 cup 10% vinegar
• 1/2 cup rapeseed oil
• 1 teaspoon sugar

Preparation

1. Place herring in a bowl and rinse with salt in cold water. Drain the salty water and add fresh water. Let sit for approximately 30 minutes, changing the water 2-3 times during this time.
2. Check (taste) whether the amount of salt is sufficient. Drain the herring, pat dry, and cut into approximately 3 cm pieces.
3. Prepare the marinade: bring water to boil, add chopped onion, and boil for approximately 2-3 minutes.
4. Add vinegar, oil, and sugar, stir, and then let cool completely.
5. Layer the herring with the cold marinade in a jar or glass container with a lid. Close and refrigerate for approximately 1 day.