BBQ Sauce Saute 1 chopped onion and 2 cloves of chopped garlic, in 1/3 cup oil until soft and lightly brown. Add: 3 tablespoons brown sugar 1 1/2 cups ketchup 1 cup water 3/4 cup vinegar 3 tablespoons Worcestershire sauce 1 tablespoon mustard (Note: You may use less if you prefer.) Mix all together and simmer 15 minutes. Keeps indefinitely in the refrigerator. Makes 1 quart.