Barbecue sauces (also abbreviated BBQ sauce) is a liquid flavoring sauce or condiment ranging from watery to quite thick. As the name implies, it was created as an accompaniment to barbecued foods. While it can be applied to any food, it usually tops meat after cooking or during barbecuing, grilling, or baking. Traditionally it has been a favored sauce for pork or beef ribs and chicken. In some barbecue circles, it is frowned upon to add any condiment, including barbecue sauce, to barbecued food, while others argue that barbecue sauce is central to the barbecue experience. Barbecue sauces may combine sour, sweet, spicy, and tangy ingredients or focus on a particular flavor alone. It sometimes carries with it a smokey flavor. The ingredients vary, but some commonplace items are tomato paste, vinegar, spices, and sweeteners. These variations are often due to regional traditions and recipes.