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Published 2010
Stock: Fonds brun
Liaison: Roux brun
Ingredients: Bacon, carrot, onion, thyme, bay leaf (bouquet garni), tomato paste
Derivatives: Sauce demi-glace with the addition of tomato paste and a longer cooking process
Escoffier might have decided to consider a demi-glace a sauce based on the fact that it also serves as an intermediary sauce for many other sauces (bordelaise, Madère, périgourdine, poivrade), however, if you go back to the origins of the demi-glace, all sauces made from it make them derivatives of the sauce espagnole. This may explain why, up until Escoffier, sauce espagnole was sometimes referred to as la grande espagnole. Its role in sauce making was such that Jules Gouffé suggested that it was more appropriate to call it sauce Française.
