Prepare rice noodles according to package directions and set aside.
8 oz rice noodles
Toast coriander, cloves and peppercorns in a dry pan over medium heat for 3-5 minutes or until they become aromatic. Remove from heat and crush with mortar and pestle or spice grinder; set aside.
In a large soup pot, warm sesame oil over medium heat for 30-60 seconds until it starts to shimmer. Add ginger and chili garlic paste then stir for 30 seconds to release flavors.
Stir in chicken broth, lemon peel, soy sauce, fish sauce, lime juice, hoisin, cinnamon and reserved toasted spices. Bring mixture to a boil then add shrimp and bok choy.