Caciocavallo is an Italian cheese. Caciocavallo was originally made by nomads and means "cheese on horseback" and is said to resemble the shape of saddle bags. Caciocavallo is an ancient, Roamn cheese, made by heating the curd, then kneading it to a malleable paste and the final cheese product taking on many shapes and forms. Caciocavallo cheeses are known as formaggio di pasta filata and include provolone.
Dowell, P., Bailey, A. (1980) The Book of Ingredients, Dorling Kindersley. ISBN 0718119150.