Place Broth ingredients in a saucepan over high heat. Place lid on, bring to simmer then reduce to medium and simmer for 8 - 10 minutes to allow the flavours to infuse.
Meanwhile, cook noodles according to packet directions.
Cut bok choys in half (for small / medium) or quarter (for large). Wash thoroughly.
Either cook the bok choi in the broth in the soup broth OR noodle cooking water for 1 min (if noodles required boiling).
Pick garlic and ginger out of soup.
Place noodles in bowls. Top with chicken and bok choy. Ladle over soup, garnish with green onions. Great served with chilli paste or fresh chillis.
