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

In the Tang Dynasty, the royal family paid special attention to the health preservation of medicinal diet, and the court also constantly created unique medicinal diet delicacies. For example, "Tang Palace sauce vinegar sheep liver" is the court's standing health recipe. We can see that the famous food doctor in the Tang Dynasty, Meng Chang, said in the "Heart Mirror of Food Doctor" that the raw materials of "Tang Gong sauce vinegar sheep liver" are sheep liver 1 kg, soy sauce, vinegar, sugar, yellow wine, ginger, scallion, starch, plain oil and so on.

The specific method is to wash the sheep liver, slice it, wrap it with thickening juice, stir-fry it in hot vegetable oil, add soy sauce, vinegar, sugar, yellow wine, Jiang Mo, chopped green onion, etc., and stir-fry it until it is tender and ripe, so it can be eaten.

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