Au Jus

Au jus is French for "with juice"; jus is the juice itself. In American cuisine, the term is mostly used to refer to a light sauce for beef recipes, which may be served with the food or placed on the side for dipping. In French cuisine, jus is a natural way to enhance the flavour of dishes, mainly chicken, veal and lamb.

Read more about Au Jus:  Ingredients and Preparation, English Language