Lao Lemongrass Beef Noodle Soup
Khao Piak Sen Neua
A fragrant and hearty noodle soup featuring tender beef, a flavorful broth infused with lemongrass and herbs, and chewy rice noodles. This dish is a comforting staple in Lao cuisine, often enjoyed for breakfast or a light dinner.

๐ง Ingredients
- 1.5 lb Beef chuck(cut into 1-inch cubes)
- 1 lb Beef bones(for broth)
- 4 stalks Lemongrass stalks(bruised and cut into 2-inch pieces)
- 2 inch piece Galangal(sliced)
- 6 cloves Shallots(peeled and halved)
- 8 cloves Garlic cloves(peeled)
- 6 leaves Makrut lime leaves
- 4 tbsp Fish sauce
- 2 tsp Salt(or to taste)
- 1 tsp Black pepper(freshly ground)
- 10 cups Water
- 12 oz Rice noodles(fresh or dried khao piak sen)
- 0.5 cup Fresh dill(chopped, for garnish)
- 0.5 cup Fresh cilantro(chopped, for garnish)
- 0.25 cup Green onions(sliced, for garnish)
- 2 tbsp Fried garlic(for garnish)
- 1 tsp Chili flakes(optional, for garnish)
๐จโ๐ณ Instructions
- 1
In a large pot or Dutch oven, combine beef chuck, beef bones, lemongrass, galangal, shallots, garlic, and makrut lime leaves. Add water, fish sauce, salt, and black pepper.
๐ก Tip: Ensure beef bones are well-rinsed. - 2
Bring the pot to a boil over high heat, then reduce heat to low, cover, and simmer for at least 1 hour and 15 minutes, or until the beef is very tender.
๐ก Tip: Skim off any impurities that rise to the surface during the first 30 minutes of simmering. - 3
Remove the beef and bones from the broth. Strain the broth through a fine-mesh sieve into a clean pot, discarding the solids. Shred or slice the cooked beef into bite-sized pieces.
๐ก Tip: You can reserve the cooked beef to add back to the soup later, or serve it as a side. - 4
Bring the strained broth back to a simmer. Add the rice noodles and cook according to package directions until tender.
๐ก Tip: If using fresh noodles, they will cook much faster than dried ones. - 5
Ladle the soup into bowls, adding some of the cooked beef to each bowl. Garnish generously with fresh dill, cilantro, green onions, fried garlic, and chili flakes if desired.
๐ก Tip: Serve immediately with extra fish sauce and lime wedges on the side.
๐ก Pro Tips
- โFor a richer broth, you can roast the beef bones and aromatics before simmering.
- โAdjust seasoning with fish sauce and salt to your preference.
- โIf you can't find khao piak sen noodles, thick rice noodles or even udon noodles can be used as a substitute.
โจ Twist Ideas
Inspiration for your own version of this recipe
- Add sliced Asian eggplant or other vegetables like bok choy during the last 15 minutes of simmering the broth.
- For a spicier soup, add fresh chilies to the broth while simmering or serve with a side of chili paste.