Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      cup           cider vinegar
   2      tablespoons   salt
     1/2  teaspoon      red pepper
   1      teaspoon      red pepper flakes
   1      tablespoon    brown sugar

Preparation:

Combine all ingredients and let sit for an hour or more at room temperature to let flavors combine and mature.