Ingredients
1 1/2 tablespoons extra-virgin olive oil
1/2 Spanish onion, finely chopped
2 garlic cloves, minced
1 can (28-ounces) crushed tomatoes
1 canned chipotle chile, packed in adobo sauce, minced
1 1/2 tablespoons Worcestershire sauce
1 1/2 tablespoons cider vinegar
1/4 cup unsulfured molasses
Juice of 1/2 lemon
Coarse salt and freshly ground black pepper
Preparation
In a medium saucepan, heat oil over medium heat. Add onion and garlic. Cook, stirring, until onion is soft and translucent, about 5 minutes.
Stir in tomatoes, chile, Worcestershire, vinegar, molasses, and lemon juice. Simmer over medium-low heat until reduced by a fourth, stirring occasionally, about 45 minutes.
Working in batches, purée sauce in a blender. Season with salt and black pepper. Refrigerate in a jar up to 2 weeks.