Demi glace意思

Demi-glace is a rich, flavorful French sauce that is made by reducing a mixture of stock, wine, and spices until it becomes a thick, concentrated glaze. It is often used as a base for other sauces or as a flavoring for dishes such as stews, braises, and roasts. The word "demi-glace" literally means "half glaze" in French, referring to the fact that it is a half-strength version of a full-bodied glace, or stock reduction.