Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  cups          cider vinegar
     1/2  cup           ketchup
   1      teaspoon      salt
     1/8  teaspoon      red pepper flakes
   1      tablespoon    sugar
     1/2  cup           water

Preparation:

Mix thoroughly and allow time for flavors to blend.