"Michael Symon uses this recipe for red onions but you can use any vegetable. Give it a try!..."
INGREDIENTS
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2 pounds red onions slicedWhite wine vinegar (amount will vary for each jar)Sugar(amount will vary for each jar)Kosher salt(amount will vary for each jar)2 teaspoons mustard seeds1 tablespoon crushed red pepper flakes2 tablespoons coriander