Au jus the cook may simply skim off the fat from the juices left after cooking and bring the remaining meat stock and water to a boil. "Jus" can be frozen for six months or longer, but the flavor may suffer after this time. American recipes "au jus" often use soy sauce, Worcestershire sauce, salt, pepper, white or brown sugar, garlic, beets, carrots, onion, or other ingredients to make something more like a gravy. The American "jus" is sometimes prepared separately, rather than being produced naturally by the food being cooked. An example could be a beef "jus" made by reducing beef
Barbecue sauce released its barbecue sauce in 1940. Kraft Foods also started making cooking oils with bags of spice attached, supplying another market entrance of barbecue sauce. Different geographical regions have allegiances to their particular styles and variations for barbecue sauce. For example, vinegar and mustard-based barbecue sauces are popular in certain areas of the southern United States, while in the northern U.S. tomato-based barbecue sauces are well-known. In Asian countries a ketchup and corn syrup-based sauce is common. Mexican salsa can also be used as a base for barbecue sauces. The sauce for "asado", similar to barbecue in Argentina and Uruguay,