Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      Cup           piquin chiles -- stems removed
   2      Cups          apple cider vinegar
   2      Cloves        garlic
     1/4  Cup           olive oil
   1      Teaspoon      dried oregano

Preparation:

Steep the chiles in the vinegar until soft, add the remaining ingredients, and place in a blender or a food processor. Blend until smooth. Let stand several hours to allow the flavors to meld. This sauce will keep for a long time in the refrigerator, as the vinegar acts as a preservative. Wear rubber gloves when making this recipe!