Anglo-Tex Mex Tamarind And Treacle Barbecue Sauce

• 2 tablespoons unsalted butter
• 1/2 cup finely diced onion
• 4 garlic cloves, finely diced
• 6 plum tomatoes, coarsely chopped
• 1/4 cup ketchup
• 1/4 cup water
• 2 tablespoons English mustard
• 2 tablespoons dark brown sugar
• 3 tablespoons treacle (may substitute molasses)
• 2 tablespoons tamarind paste
• 1 teaspoon cayenne pepper
• 1 tablespoon dried ancho chile powder
• 1 tablespoon paprika
• 1 tablespoon Worcestershire sauce

1. Heat the butter in a large saucepan over medium-high heat.
2. Add the onions and garlic and cook until soft.
3. Add the remaining ingredients and cook for 15 minutes.
4. Place the mixture in a blender and blend until smooth.
5. Return to the saucepan and cook for an additional 15 to 20 minutes, or until thickened to your liking.

unsalted butter, onion, garlic, tomatoes, ketchup, water, english mustard, brown sugar, tamarind paste, cayenne pepper, chile powder, paprika, worcestershire sauce

Taken from www.food.com/recipe/anglo-tex-mex-tamarind-and-treacle-barbecue-sauce-65729 (may not work)