Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   3                    chipotle peppers -- stems removed
   2                    dried red New Mexican chilies
   1      medium        onion -- chopped
   2      tablespoons   vegetable oil
   2      cloves        garlic -- minced
   3                    piquin chilies -- crushed
     3/4  cup           ketchup
   3      tablespoons   vinegar
   2      tablespoons   brown sugar
   1      teaspoon      dry mustard
   1      teaspoon      Worcestershire sauce
   2      cups          water
   2      pounds        chicken wings

Preparation:

Cover dried chilies with hot water and let sit for 15 minutes. Drain. Sauté the onion in oil until soft. Add garlic, cook for another 3 minutes. Add remaining ingredients except for the chicken wings, bring to a boil, reduce heat, and simmer for 20 minutes. Remove from heat, and puree in a blender until smooth. Cook over a slow fire, turning frequently, until done--about 30 minutes. Baste liberally with the sauce during the last 15 minutes of cooking.