Since the Sui and Tang Dynasties, the society has been relatively stable and the economy has been prosperous. Chang 'an, the capital, is densely populated, with merchants from all over the world, restaurants and restaurants, rich in dishes and diverse cooking methods. Not only its color, fragrance and taste, but also its diet are required, so as to play a role in health care.

In the Tang Dynasty, the royal family paid special attention to the health of medicinal diet, and the court also constantly created unique medicinal diet delicacies. For example, "Tang Palace sauce vinegar sheep liver" is a healthy diet that the court always keeps. We can see that Meng Chang, a famous food doctor in the Tang Dynasty, said in "A Doctor's Heart Mirror" that the raw material of "Tang Gong Jiang Vinegar Sheep Liver" is 1 kg sheep liver, as well as a proper amount of soy sauce, vinegar, sugar, yellow wine, ginger, onion, starch, white oil and so on.

The specific method is to clean sheep liver, slice it, wrap it with thickening juice, stir-fry it in hot vegetable oil, and add soy sauce, vinegar, sugar, yellow wine, Jiang Mo and chopped green onion. , and stir-fry until tender, then serve.

"Tang Palace sauce vinegar sheep liver" has the effect of nourishing liver and improving eyesight. Can be used for treating liver asthenia, blurred vision, night blindness, etc.