In Greece's New Year's Eve tradition, the baked cake containing a hidden lucky coin is vasilopita.
Vasilopita means “Saint Basil's pie” or “Saint Basil's cake.” Families usually cut it around New Year's Day, often after midnight, and hide a coin called a flouri inside before baking. The person who finds the coin is traditionally believed to receive good luck for the coming year.
The cake's form varies by region and household. It may resemble a sweet bread, a brioche-like loaf, or a citrus-flavored cake, and it is commonly decorated with the numerals of the new year. Slices can be assigned symbolically to Christ, the household, family members, visitors, or absent relatives before everyone receives a portion.
Vasilopita is associated with Saint Basil the Great, whose feast day is observed on January 1 in Greece. The coin tradition is also linked in popular stories to Saint Basil's charitable distribution of valuables, although historical and regional versions of the story differ.