The oak leaf on kashiwamochi is a wish for the prosperity of descendants | Useful information for creating menus and cooking
Kashiwamochi, a type of rice cake eaten in the Kanto region on Boys' Day, is a sweet that originated in the Edo period. The oak leaves used to wrap the mochi are from the oak tree, which has long been considered a sacred tree. As the oak tree's old leaves do not fall off until new shoots appear, legend has it that "parents do not die until a child is born." From this, it became associated with "an unbroken line of successors" and "prosperity of descendants," and wrapping mochi in oak leaves on Boys' Day became an auspicious food, spreading throughout the Kanto region, primarily in Edo.