Divination through sortilege of fortunes written on slips of paper. The fortunes were inserted into balls of dough that were baked, mixed, and distributed randomly. This form of divination is the origin of Ash Wednesday pancakes and fortune cookies. Another version involves the interpretation of patterns left in a bowl of flour rinsed in water. Aleuromancy was the domain of Apollo in some traditions.
Aleuromancy is the use of flour for divination. The word comes from the Greek aleuron, meaning flour, and manteia, meaning divination. It was originally something like a Greek fortune cookie.