Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      cups          white vinegar
   2      cups          apple cider vinegar
   2      cups          water
     1/3  cup           ketchup
     1/8  cup           Texas Pete hot sauce
   1      tablespoon    sugar
   1      tablespoon    red pepper flakes
   2      teaspoons     nuoc nam

Preparation:

Mix ingredients and simmer on low heat for 30 minutes, stirring occasionally. Use as a finishing sauce for pulled pork barbecue.