Ingredients
2 1/3 cups ketchup
1 1/4 cups cider vinegar
1/2 cup unsulfured molasses
1 to 2 tablespoons harissa (North African chili sauce)
1 tablespoon Worcestershire sauce
1 tablespoon mustard powder
1 tablespoon onion powder
Preparation
Combine all ingredients in a saucepan, and bring to a boil. Reduce heat, and simmer, stirring occasionally, until sauce thickens, 20 to 30 minutes. Sauce can be refrigerated 1 day.
