"Brazo Gitano" ("Gypsy Arm" or Swiss Roll)

There are many theories about the origins of this cake, which consists of a sheet of sponge cake rolled up with a filling. Some say that it was given as payment to gypsy artisans when they offered their services to bakeries. It was made from leftover sponge cake that was rolled up so it could be easily carried under the arm. Another theory is that it was brought back from Egypt by a monk from El Bierzo. In Spain, it is associated with Aragonese baking, especially that of Huesca, although it is eaten all over the country.