But this day will not be completed without a ‘roscón de Reyes’ (King cake). The Spanish King cake or ‘roscón’ is a yeast-based brioche made in the shape of a ring and filled with almonds and dried fruits. A trinket is placed in the cake. The person who gets the trinket on his/her piece of cake (usually the youngest member in the family) becomes the king/queen for the day. For more information see Wikipedia entry for King cake HERE.