Cavallucci, a rich Italian Christmas pastry, were believed to be served to travelers on horseback as a source of nourishment for long trips and another speculation is that postal workers who delivered mail over long distances ate the cookies on a regular basis.
Cavallucci are a rich Italian Christmas pastry prepared with anise, almonds, candied fruits, coriander, and flour. According to the most popular version of the story, cavallucci were served to travelers on horseback as a source of nourishment for long trips. Along a similar vein, another speculation is that postal workers who delivered mail over long distances ate the cookies on a regular basis. 
