Traditionally, the Dongzhi Festival is also a time for the family to get together. One activity that occurs during these get togethers (especially in the southern parts of China and in Chinese communities overseas) is the making and eating of tangyuan (湯圓) or balls of glutinuous rice, which symbolize reunion. Tangyuan are made of glutinuous rice flour and sometimes brightly coloured. Each family member receives at least one large tangyuan in addition to several small ones. The flour balls may be plain or stuffed. They are cooked in a sweet soup or savoury broth with both the ball and the soup/broth served in one bowl. It is also often served with a mildly alcoholic unfiltered rice wine containing whole grains of glutinous rice (and often also Sweet Osmanthus flowers), called jiuniang.
In northern China, people typically eat dumplings on Dongzhi. It is said to have originated from Zhang Zhongjing in the Han Dynasty. On one cold winter day, he saw the poor suffering from chilblains on their ears. Feeling sympathetic, he ordered his apprentices to make dumplings with lamb and other ingredients, and distribute them among the poor to keep them warm, to keep their ears from getting chilblains. Since the dumplings were shaped like ears, Zhang named the dish "qùhán jiāoěr tāng" or dumpling soup that expels the cold. From that time on, it has been a tradition to eat dumplings on the day of Dongzhi.
Old traditions also require people with the same surname or from the same clan to gather at their ancestral temples to worship on this day. There is always a grand reunion dinner following the sacrificial ceremony.
The festive food is also a reminder that we are now a year older and should behave better in the coming year. Even today, many Chinese around the world, especially the elderly, still insist that one is "a year older" right after the Dongzhi celebration instead of waiting for the Chinese New Year.