Buy according to how you plan to use the sauce. A tomato-based barbecue sauce is a good all-purpose sauce, vinegar-based sauces are ideal for marinating meat, and those with a mustard base are ...
(A good rule of thumb is two teaspoons per pound ... grill and let it rest for at least 20 to 30 minutes. For the vinegar-BBQ sauce, combine the vinegar, water, sugar, salt, hot pepper flakes ...