Andy's Award Winning BBQ Sauce, a.k.a UFO Social Club Barbecue Sauce
Mix together all the ingredients thoroughly. The rub will keep for several months stored in a cool, dark place in an airtight container. Yields 1 cup.
Heat oil in large, heavy-bottomed saucepan over medium-high heat. Add the onion and sauté, stirring frequently, until golden brown, about 10 minutes. Add the remaining ingredients and bring to a boil. Reduce heat to very low and simmer gently for 2 hours. Stir the sauce occasionally, scraping the bottom of the pot to prevent scorching. Transfer the sauce to a food processor or blender and puree in 2 batches. Transfer to a clean glass jar and store for up to 7 to 10 days in the refrigerator.