Barbecue sauce or BBQ sauce is a (usually) thick liquid sauce used for flavor that is poured onto meat while that is being grilled or barbecued. It is also used as a dipping condiment.
Most barbecue sauces combine sour, sweet, and spicy ingredients. They are usually made with a smoke flavor. The most popular BBQ sauces are tomato-based, with vinegar and sugar; but vinegar- and mustard-based sauces are popular in the certain areas of the American south.
Different geographical regions have strong allegiances to their particular styles and recipes of barbeque, often creating a regional lore and keeping their unique recipes secret.
Some popular styles of sauce and their distinguishing ingredients:
• Kansas City (thick, red-brown, tomato, molasses)
• North Carolina (liquid vinegar, pepper flakes)
• South Carolina (mustard, vinegar, black pepper)
• Alabama (white mayonnaise based)
• Arkansas (thin vinegar and tomato base, spiced with pepper and slightly sweetened by molasses)
• Texas (tomato based with hot chilies, cumin, less sweet).