Yam Pork Bone Soup
                            
                                1.
                                Wash the pork bones, slice the old ginger, and cut off the scallion;
                                    
                            
                            
                                2.
                                Soak the pork bones in clean water for a while;
                                    
                            
                            
                                3.
                                Peel the yam and cut it off (if not eaten immediately, soak in water to prevent the yam from discoloring); prepare goji berries;
                                    
                            
                            
                                4.
                                Pour an appropriate amount of water into the pot, add pork bones, 2 slices of ginger, and 1 green onion; add an appropriate amount of cooking wine and bring to a boil;
                                    
                            
                            
                                5.
                                Take out the pig bones and rinse them with running water;
                                    
                            
                            
                                6.
                                Put the pork bones, the remaining sliced ginger, and the green onion into the electric cooker, and add enough water;
                                    
                            
                            
                                7.
                                Cover, turn on the power, and start the "soup" program;
                                    
                            
                            
                                8.
                                2 When I was young, put in yam;
                                    
                            
                            
                                9.
                                Add an appropriate amount of salt and stir evenly;
                                    
                            
                            
                                10.
                                Put the wolfberry in 5 minutes before the end of the procedure;
                                    
                            
                            
                                11.
                                After the program ends, power off;
                                    
                            
                            
                                12.
                                [Yam Spare Ribs Soup] It's ready.
                                    
                            
                            
                                Tips: 
                                1. The amount of salt should be increased or decreased according to the amount of soup;
 2. To blanch the pork bones in a pot under cold water; after boiling, boil it for about 1 minute and turn off the heat to get out of the pot; then rinse it off with running water;
 3. Put the wolfberry five minutes before it is out of the pot;
 4. The iron rod yam has high nutritional value. If it is not eaten immediately, it can be soaked in water after peeling;