Kelp Duck Soup
                            
                                1.
                                Prepare the materials;
                                    
                            
                            
                                2.
                                Duck pieces in water; lean meat slices;
                                    
                            
                            
                                3.
                                Wash the kelp knots;
                                    
                            
                            
                                4.
                                Put all the ingredients in the pot, add proper amount of water, boil on high heat to remove the foam, turn to low heat and cook for 1 and a half hours. Add salt to taste when drinking~~~~~~~~~