Mantecados and Polvorones Christmas Cakes We are excited to introduce the finest mantecados and polvorones in the world! These Christmas treats are produced by La EstepeƱa, the leader in production since 1860. Mantecados and polvorones are a tradition in Southern Spain, a rich treat perfect for Christmas celebrations. Our "Maestro Obrador" versions are the finest available, made with almonds, Iberico shortening and not much else. Share the very best of Spain this Christmas!