*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Put bean thread noodles in a large bowl. Pour enough warm water over the noodles to cover by an inch. Soak noodles until softened, about 15 minutes; drain. Cut noodles into shorter lengths as desired.
Put chicken breasts in a large pot with enough water to cover by a few inches; bring to a boil and cook chicken until until no longer pink in the center and the juices run clear, 7 to 10 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).
Remove chicken breasts to a cutting board and shred into strands with 2 forks; return shredded chicken to the pot of boiling water.
Pour chicken broth into the pot and reduce heat to medium-high; add onion, garlic, ginger, fish sauce, soy sauce, and bay leaves; season with salt and pepper. Bring liquid again to a boil and add the bean thread noodles; cook at a boil until the noodles are translucent, about 5 minutes.
Stir bok choy into the liquid; cook just until the leaves wilt slightly, 1 to 2 minutes.