Yam Black Chicken Soup
                            
                                1.
                                Wash the black-bone chicken, remove the internal organs, cut into small pieces, boil a pot of boiling water, and blanch the cut black-bone chicken with boiling water to remove the dirty blood
                                    
                            
                            
                                2.
                                Peel the iron rod yam and cut into sections; wash the wolfberry and red dates; cut 2 slices of ginger; wash the scallions and twist into knots
                                    
                            
                            
                                3.
                                Put all the ingredients into the pressure cooker, increase the pot with half a pot of water
                                    
                            
                            
                                4.
                                Add 1 porcelain spoon of cooking wine
                                    
                            
                            
                                5.
                                Cover the pressure cooker and simmer for 20 minutes. Add appropriate amount of salt and pepper to the pan according to personal taste
                                    
                            
                            
                                Tips: 
                                The saponin contained in the yam skin or the plant alkaloids contained in the mucus can cause yam allergies and itching when a few people come into contact with them. Avoid direct contact when handling yam.