Hollandaise sauce mayonnaise and Béarnaise, the egg does not coagulate as in a custard; rather, the lecithin in the eggs serves as an emulsifier, allowing the mixture of the normally immiscible butter and lemon juice to form a stable emulsion. To make hollandaise sauce, beaten egg yolks are combined with butter, lemon juice, salt, and water, and heated gently while being mixed. Some cooks use a double boiler in order to control the temperature. Some recipes add melted butter to warmed yolks; others call for unmelted butter and the yolks to be heated together; still others combine warm butter and eggs in
French cuisine a very French tradition during Christmas. Chocolate and cakes also occupy a prominent place for Christmas in France. This cuisine is normally accompanied by Champagne. Tradition says that thirteen desserts complete the Christmas meal in reference to the twelve apostles and Christ. The modern restaurant has its origins in French culture. Prior to the late 18th century, diners who wished to "dine out" would visit their local guild member's kitchen and have their meal prepared for them. However, guild members were limited to producing whatever their guild registry delegated to them. These guild members offered food in their own homes