"A classic recipe for Swedish pickled herring called glasmastarsill, or glassblower’s herring. Herring, sardines, smelt or whitefish can all be pickled this way...."
INGREDIENTS
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1/4 cup salt
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5 cups water, divided
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1 pound herring
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2 cups vinegar
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1/4 cup sugar
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1 teaspoon mustard seed
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2 teaspoons allspice
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2 teaspoons black peppercorns
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3 bay leaves
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3 cloves
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1 red onion