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 of 10:00 pm and 11:00 pm. Some restaurants close for dinner on Sundays. In French cuisine, beverages that precede a meal are called apéritifs (literally: "that opens the appetite"), and can be served with amuse-bouches (literally: "mouth amuser"). Those that end it are called digestifs. The apéritif varies from region to region: Pastis is popular in the south of France, Crémant d'Alsace in the eastern region. Champagne can also be served. Kir, also called "Blanc-cassis", is a common and popular apéritif-cocktail made with a measure of crème de cassis (blackcurrant liqueur) topped up with white wine. The phrase "Kir Royal"