
This Chinese roast duck noodle soup turns savory Cantonese roast duck into a comforting bowl of rich broth, tender noodles, and sweet napa cabbage. It comes together quickly with just a few seasonings, making it an easy way to serve a deeply satisfying noodle soup at home.
Reserve 4 to 6 meaty pieces of roast duck for serving, if desired. Place the remaining duck in a medium pot with the water and chicken bouillon paste, bring to a boil, then cover and simmer for 20 minutes to build the broth.
While the broth simmers, trim the napa cabbage and cut it into bite-size strips about 3/4 inch wide. Bring a separate pot of water to a boil for cooking the noodles.
If you reserved duck pieces for topping, arrange them on a foil-lined baking sheet. Warm them in a 325°F oven for 8 to 10 minutes, then keep them warm until serving.
After the broth has simmered, add the napa cabbage, salt, sesame oil, and white pepper. Return the soup to a gentle simmer and cook uncovered for about 5 minutes, until the cabbage is tender but not mushy.
Cook the fresh noodles in the boiling water according to the package directions, then drain well. Divide the noodles between 2 serving bowls.
Ladle the hot duck broth, simmered duck, and napa cabbage over the noodles. Top with the warmed roast duck pieces, garnish with cilantro, and serve immediately.
For the fullest duck flavor, simmer all of the roast duck in the broth and reduce or omit the bouillon paste if the duck is well seasoned. Fresh egg noodles work especially well, but other fresh wheat noodles can be used. Cook the noodles separately so the broth stays clear and the noodles do not become soggy. Store leftover broth, duck, and noodles separately when possible; refrigerate for up to 2 days and reheat the broth until piping hot before serving.