Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      cups          cider vinegar
   1      tablespoon    peppercorns
   1      teaspoon      celery seed
   1      teaspoon      salt
   1      tablespoon    red pepper flakes
   1                    onion -- finely chopped
   1      cup           water

Preparation:

Preparation: Combine in a large saucepan. Bring to a boil, reduce heat, and simmer uncovered for an hour. Strain to remove the peppercorns if you like.