$$. Xianyukou Bianyifang 鲜鱼口便宜坊 is a Chinese national treasure and a 600 year-old absolutely must visit restaurant experience in Beijing for Peking Duck. They laboriously and meticulously prepared entrées and side dishes that are most authentic, that very proudly and perfectly represents Chinese Beijing cuisine. This restaurant is very popular and can get really busy, but the service is excellent and has an incredibly professional, dedicated and highly knowledgable staff that can answer any question you may have and provide recommendations too. Established in 1416, the original Bianyifang used to be a small workshop, which produced duck and chicken food in Mishihutong (米市胡同), Caishikou, Beijing. In 1827, its owner Sun Zijiu (孙子久) began to extend its business and established a bigger restaurant, where Peking Duck and Spanish and French Style Duck Liver (西法鸭肝) are its "signature dishes". Xianyukou Bianyifang in 1855 was established in Qianmen, Beijing by a Wang family, who hired a chef of the original Bianyifang. The restaurant has carried the Beijing cuisine tradition from the Qing dynasty to its modern-day form. Due to the fame of the original Bianyifang, many restaurants named themselves "Bianyifang", among which, Xianyukou Bianyifang 鲜鱼口便宜坊 is the one that exists today.