Sauce bourguignonne the pan and the red wine is added which is used to dissolve and incorporate the residue from the cooking of the meat. The onions may also be cooked at the same time as the meat. Sauce bourguignonne Sauce bourguignonne , Bourguignonne sauce, is a French sauce with a base of red wine with onions or shallots, a "bouquet garni "(parsley, thyme and bay leaf), reduced, strained, and mixed with some espagnole sauce. Just before serving it is mounted with butter and seasoned lightly with cayenne pepper. Like all red wine sauces, it may have some mushrooms added during cooking
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