day-of-the-Boar mochi
A traditional Japanese sweet made with newly harvested grains, eaten on the Day of the Boar (亥の子) in the eleventh month of the old lunar calendar. Associated with the 亥の子の祝い celebration.
See also: 亥の子の祝い
Inoko-mochi is a rice cake eaten on the Day of the Boar in the Boar month of the old lunar calendar.
From 亥の子 (Day of the Boar) + 餅 (mochi). The exact historical origin is uncertain, but it is associated with harvest rituals and the wish for prosperity.