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
Spanish cuisine them: Magras con tomate, roasted pork leg and Almojábanas de Cerdo. Among the recipes made with bread are: migas de Pastor, migas con chocolate, Regañaos (cakes with sardines or herring,) and goguera. The most notable condiment is garlic-oil. Legumes are very important but the most popular vegetables are borage and thistle. In terms of cured meats, ham from Teruel and Huesca are used often. Among the cheeses, Tronchon is notable. Fruit-based cuisine includes the very popular Fruits of Aragon (Spanish: Frutas de Aragon; candied fruits) and Maraschino cherries. Asturian cuisine has a long and rich history, deeply rooted in Celtic