Lemon duck

nanning wuming lemon duck, ningmeng ya, 柠檬鸭, 南宁武鸣柠檬鸭

Lemon duck or ningmeng ya is a specialty dish of the Wuming district, Nanning, Guangxi. The sour preserved lemon peel and other sour preserved ingredients used are a common feature of the cooking of the Zhuang minority who live in Guangxi. Lemon is otherwise not commonly used in Chinese cuisine. The flavor is described as 'hot and sour' (Chinese: 酸辣; pinyin: suānlà).

Source: Wikipedia