KC-Style Chipotle BBQ Sauce

Ingredients

1 cup ketchup
1/2 cup dark brown sugar 
1/4 cup pureed chipotle peppers in adobo 
2 tablespoons Worcestershire sauce 
1 tablespoon molasses 
1 tablespoon cider vinegar 
2 teaspoons ancho chile powder 
1 teaspoon salt 
1/2 teaspoon black pepper 
1/2 teaspoon cocoa powder 
1/2 teaspoon liquid smoke 
1/4 teaspoon dried oregano 
1/4 teaspoon dried thyme 
1/4 teaspoon mustard powder 

Mix together the ketchup, sugar, chipotle, Worcestershire, molasses, vinegar, ancho powder, salt, pepper, cocoa, liquid smoke, oregano, thyme and mustard powder in a saucepan and gently warm over medium heat, stirring continuously, until the sugar dissolves. Do not boil.

The sauce can be used immediately. The flavors will continue to meld if allowed to rest in the refrigerator overnight.