This is named after Empress Eugénie, the Spanish wife of Napoleon III, who made chocolate a popular drink in France. It is still prepared and served this way at the Hotel du Palais in Biarritz for the merienda. After the Spanish had introduced chocolate from the New World, they could not keep it a secret very long, and it soon found its way over the Pyrenees to Bayonne and Biarritz, where still today you will find some of the world’s best chocolatiers.