Au jus
Au jus is a French culinary term meaning "with juice". It refers to meat dishes prepared or served together with a light broth or gravy, made from the fluids secreted by the meat as it is cooked. In French cuisine, cooking au jus is a natural way to enhance the flavour of dishes, mainly chicken, veal, and lamb. In American cuisine, the term is sometimes used to refer to a light sauce for beef recipes, which may be served with the food or placed on the side for dipping. To prepare a natural jus, the cook may 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 flavour may suffer after this time.
Source: Wikipedia
Recipes
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How to Make Au Jus From Beef Base | livestrong
Au jus is a light beef juice commonly served as a dipping sauce for sandwiches or drizzled over the top of meat. In French, au jus means “with juice” or “with its own sauce.” You can make au jus from beef base rather than using fresh beef stock for a...