Vietnamese noodle soup is popular in northern Vietnam. Consisting of rice noodles on the bottom of the bowl, meat (incl. raw beef, tripe, beef brisket, tendon, etc.), with *extremely* hot broth is poured over the top.
The meat is actually cooked by the broth. So use the chopsticks and spoon to move the noodles from the bottom of the bowl to the top to cover the meat. This allows for the meat be cooked properly.
Be careful of the spicy, red sauce called Uc. Very spicy!!!