Nanjing Style Dried Salty Duck It has a long history of over 1,000 years. apart from its plumpness in appearance. It, the duck tempts people with characteristics of tasting crisp, fresh, fragrant, and rich but not greasy. The cooking method of the duck was invented 600 years ago. The salted duck is slathered with roasted salt, steeped in clear brine, baked dry and then kept under cover for some time; the finished product should have a creamy-colored skin and red, tender flesh. It was the tribute to the royal palace during the Qing Dynasty.