Anglo-Tex Mex Tamarind And Treacle Barbecue Sauce - cooking recipe

Ingredients

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

Preparation

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