Tong Yuhn: The Cultural Significance of Glutinous Rice Balls in East Asian Traditions

Tong yuhn, glutinous rice balls stuffed with pastes of black sesame, peanut, or red bean, are served in a sweet soup flavored with ginger and osmanthus flowers. These treats are popular in mainland China, Hong Kong, and Taiwan, with regional adaptations such as Vietnam's chè trôi nuóc and Thailand's bua loi found in Southeast Asia. Linked to the Lantern Festival, which signifies the conclusion of Lunar New Year festivities on 15 February 2022, tong yuhn are also tied to the Han dynasty story of Yuan Xiao. In this narrative, Yuan Xiao, a maid in Emperor Wu's court, reunites with her family thanks to adviser Dongfang Shuo, making the rice balls a symbol of family togetherness. Shaped like the full moon to signify completeness, they are traditionally consumed during Dung Zi, the winter solstice around 22 December, to herald the coming of spring. While originally a winter delicacy, tong yuhn are now enjoyed year-round in various flavors, including chocolate and matcha, and continue to be a beloved comfort food in Hong Kong's late-night dessert spots. Their deep-rooted ties to rural customs and festivals underscore their cultural significance in Chinese communities.