Demi-glace warm. At this point, the espagnole is prepared, and when it is finished, the brown stock is added in equal portions to the espagnole. Demi-glace keeps very well, about six months refrigerated or almost indefinitely frozen. Due to the considerable effort involved in making the traditional demi-glace, chefs commonly substitute a simple "jus lié" of veal stock or to create a simulated version, which the American cookbook author Julia Child referred to as a "semi-demi-glace"(i.e. sans espagnole sauce). However, even today, many chefs who prepare French "haute cuisine" use a demi-glace prepared in their own kitchen. Concentrates and mixes, mostly
French cuisine a very French tradition during Christmas. Chocolate and cakes also occupy a prominent place for Christmas in France. This cuisine is normally accompanied by Champagne. Tradition says that thirteen desserts complete the Christmas meal in reference to the twelve apostles and Christ. The modern restaurant has its origins in French culture. Prior to the late 18th century, diners who wished to "dine out" would visit their local guild member's kitchen and have their meal prepared for them. However, guild members were limited to producing whatever their guild registry delegated to them. These guild members offered food in their own homes