Béarnaise sauce Béarnaise sauce Béarnaise sauce (; ) is a sauce made of clarified butter emulsified in egg yolks and white wine vinegar and flavored with herbs. It is considered to be a "child" of the mother Hollandaise sauce, one of the five mother sauces in the French haute cuisine repertoire. The difference is only in the flavoring: Béarnaise uses shallot, chervil, peppercorns, and tarragon in a reduction of vinegar and wine, while Hollandaise is more stripped down, using a reduction of lemon juice or white wine. (One means of preparing Béarnaise, see below, is to start with Hollandaise and add the
French cuisine more elaborate style with extensive explanations of technique. Additional smaller preparations are included in this edition as well, leading to lighter preparations, and adding a third course to the meal. Ragout, a stew still central to French cookery, makes its first appearance as a single dish in this edition as well; prior to that, it was listed as a garnish. Shortly before the French Revolution, dishes like bouchées à la Reine gained prominence. Essentially royal cuisine produced by the royal household, this is a chicken-based recipe served on vol-au-vent created under the influence of Queen Marie Leszczyńska, the wife of