Preparation

• In a medium Dutch oven or other heavy-duty pot, heat the oil over medium heat. Add the onion and garlic, and cook, stirring often, until the onion is soft and just beginning to turn golden, 5 minutes.
• Add the vinegar, sugar, Worcestershire, molasses, soy sauce, tomato paste, black pepper, pepper flakes, salt, and cayenne. Increase the heat to medium high, and bring to a boil, stirring as the sauce heats.
• Once the sauce reaches a boil, turn off the heat, stir, and cover. Let sit for 30 minutes for the flavors to meld. Store the sauce in an airtight container in the refrigerator for up to 2 weeks.