Hollandaise sauce One of his categories was "allemande", which was a stock-based sauce using egg and lemon juice. Escoffier replaced "allemande" with "hollandaise" in his list of the five mother sauces of haute cuisine. While many believe that a true hollandaise sauce should only contain the basic ingredients of eggs, butter and lemon, Prosper Montagne suggested using either a white wine or vinegar reduction, similar to a Béarnaise sauce, to help improve the taste. In English, the name "Dutch sauce" was common through the nineteenth century, but was largely displaced by "hollandaise" in the twentieth. As in other egg emulsion sauces, like
French opera Classical "Pénélope" (1913) and Paul Dukas's colourful Symbolist drama, "Ariane et Barbe-Bleue" (1907). The more frivolous genres of operetta and opéra comique still thrived in the hands of composers like André Messager and Reynaldo Hahn. Indeed, for many people, light and elegant works like this represented the true French tradition as opposed to the "Teutonic heaviness" of Wagner. This was the opinion of Maurice Ravel, who wrote only two short but ingenious operas: "L'heure espagnole" (1911), a farce set in Spain; and "L'enfant et les sortilèges" (1925), a fantasy set in the world of childhood in which various animals and