Beef noodle soup is so entrenched in the Chinese food culture, I feel like you can find a different version of it almost everywhere you go in the country. Though usually made with shank, brisket, or chuck, the last time I was at home visiting my parents, my mom introduced me to a version made with oxtail. Since oxtail has a lot of fat and connective tissue, the meat becomes very tender when stewed for a long time. It is so delicious.