This recipe came out of the Ladies Home Journal. If you find this sauce tart, you can add add teaspoon or two of brown sugar this this.

Sonny’s Smokehouse Barbeque

Makes 4 cups.
4 ancho chile peppers (2 oz.)
2 C. water
1 C. ketchup
1 C. cider vinegar
1/2 C. Worcestershire Sauce
2 Tbsp. paprika
2 Tbsp. dry mustard
1 tsp. freshly ground pepper
1/2 tsp. black peppercorns
1/2 lemon
1/4 C. butter or margarine 

Toast anchos in a large skillet over medium heat, turning once, until they are softened, 4 to 5 minutes. Transfer to a saucepan; add water; bring to a boil. Reduce heat and simmer anchos 5 minutes. Remove from heat, let stand 10 minutes. Remove anchos, reserving water. Discard seeds and stems. Puree anchos and reserved water in blender until smooth. Transfer ancho mixture and remaining ingredients, except lemon and butter, to saucepan. Squeeze juice from lemon half into mixture; add lemon half. Bring sauce to a boil; reduce heat and gently boil 30 minutes. Remove lemon half; stir in butter.