1.
                                    
                                    Chop the salmon with a knife.
                                
                                                                                            
                                    
                                        2.
                                    
                                    Chop the onion and capers and mix them with the salmon.
                                
                                                                                            
                                    
                                        3.
                                    
                                    Add the soy sauce, lemon drops, mustard, wasabi paste, a dash of vinegar and a dash of oil. Let it macerate, well covered, during one hour.
                                
                                                                                            
                                    
                                        4.
                                    
                                    In a plate put a good portion of salmon tartar, an egg yolk on top and finish with a pinch of sesame seeds.