The invention relates to a preparation method of an old duck soup, wherein the preparation method includes the following steps: (1) respectively taking the following ingredients according to the weight: 220-280 g of duck meat, 30-35 g of caulis dendrobii, 33-35 g of
lotus seed, 15-25 g of
coix seed, 52-70 g of Chinese yam, 5-25 g of table salt, 8-18 g of shallot, 20-28 g of ginger, 555-560 g of water, and 55-80 g of cooking
wine; (2) rinsing the caulis dendrobii and the
coix seed cleanly, then putting in a pot, and stewing; (3) chopping the old duck into large blocks,
blanching with water and defoaming; (4) peeling the Chinese yam, washing cleanly, roll-
cutting into blocks, and washing the
lotus seed cleanly; (5) adding the old duck and the Chinese yam into the stewed caulis dendrobii and
coix seed, adding a piece of old ginger, adding the shallot, and stewing; and (6) adding the
lotus seed, continuing to stew, adding the salt,
seasoning, and turn off fire. According to the preparation method of the old duck soup, the preparation method is simple,
nutrition is rich, the
nutrition of the old duck is well preserved in the preparation process and has no loss, the prepared soup is a most tonic soup best to drink, and a person has a good
mood after having the soup.