Peel the ginger and cut it into pieces.
In a pot, heat the beef broth with the ginger pieces and the star anise. Let it infuse for about fifteen minutes.
Slice the beef into thin strips.
Wash the chili pepper and cut it into thin diagonal slices.
Squeeze the juice of one lime and cut the other two into quarters.
Pluck the leaves off the cilantro.
Add the nuoc-mam sauce and lime juice to the broth.
Cook the rice noodles in a pot of boiling salted water according to the instructions on the package. Drain them.
Divide the noodles, beef strips, and chive stalks among 4 bowls.
Pour the strained beef broth over the ingredients in the bowls.
Garnish your pho with chili slices, lime quarters, and cilantro. Pepper to taste.