Core Viewpoint - The article highlights the cultural significance of the Winter Solstice in China, emphasizing traditional foods and family gatherings associated with this festival [1]. Group 1: Traditional Foods - In northern China, particularly in Xi'an, eating dumplings is a key Winter Solstice tradition, with over 300 varieties of dumplings made using different cooking methods and fillings [4]. - In Northeast China, making sticky rice dumplings (粘豆包) is both a tradition and a way to strengthen social bonds, with villagers preparing them together and storing them for winter [6]. - In Qinghai Province, a simple bowl of lamb soup is a staple during the Winter Solstice, prepared with minimal seasoning to highlight the meat's natural flavor [8][10]. Group 2: Local Customs - In Taiyuan, Shanxi Province, the practice of making vinegar is an important custom during the Winter Solstice, with long queues forming at traditional vinegar shops [13]. - In Suzhou, Jiangsu Province, locals gather to purchase traditional winter brew, demonstrating the cultural importance of seasonal beverages [17]. Group 3: Unique Regional Delicacies - In Fujian Province, the harvesting of sugarcane around the Winter Solstice leads to the production of traditional "red board sugar," a sweet treat made through a meticulous cooking process [20][22]. - In Yunnan Province, the making of colorful "seven-color glutinous rice balls" (汤圆) brings together local residents and tourists, showcasing the use of natural plant dyes in food preparation [26].