Espagnole sauce new sauce was an instant success, and was gratefully named in honor of its creators." In "Kettner's Book of the Table", published in 1877, an entirely different explanation is given: The name "Kettner" in the title refers to Auguste Kettner, former chef to Napoleon III, who emigrated to England and in 1867 opened a restaurant in Soho—"Kettner's"—one of the oldest restaurants in London. Espagnole sauce Espagnole sauce () is a basic brown sauce, and is one of Auguste Escoffier's five mother sauces of classic French cooking. This sauce was already compiled in different Spanish cooking handbooks of the late 19th
French cuisine contrôlée" (AOC) (regulated appellation) laws. French cuisine was made important in the 20th century by Auguste Escoffier to become the modern haute cuisine; Escoffier, however, left out much of the local culinary character to be found in the regions of France and was considered difficult to execute by home cooks. Gastro-tourism and the "Guide Michelin" helped to acquaint people with the rich bourgeois and peasant cuisine of the French countryside starting in the 20th century. Gascon cuisine has also had great influence over the cuisine in the southwest of France. Many dishes that were once regional have proliferated in variations