It tastes better if you add some shredded pork. Stir-fry celery stalks (cut celery into thin slices), pick off the leaves, and keep them to make egg soup. It is rich in nutrients and very fragrant. The lilies should be blanched in boiling water first, the shredded pork should be sautéed in oil that is 60% to 70% hot, and the celery stalks should be fried until they are 70% cooked. Put the lilies down and fry a few more times before serving.