Swedish Pickled Herring recipe - from the Joan & Donna's Favourites Family Cookbook

Ingredients

• 1/4 cup kosher salt
• 5 cups water, divided
• 1 lb herring fillets
• 2 cups distilled or white wine vinegar
• 1/4 cup sugar
• 1 tsp mustard seed
• 2 tsp black peppercorns
• 3 bay leaves
• 3 cloves
• 1 lemon thinly sliced
• 1 medium red onion thinly sliced