As long as it has been registered and you use it, it is an infringement. You can be held responsible and demand compensation. You can choose another name, such as:
Qinhuai Family Duck Blood Vermicelli Soup ,
Authentic Nanjing Duck Blood Vermicelli Soup
If you really want to play it on the edge, you can also call it:
Xiao Jinling Duck Blood Vermicelli Soup
Aftertaste for a long time duck blood vermicelli soup