Khao Piak Sen
Lao Tapioca Noodle Soup
Khao Piak Sen, often translated as 'wet rice strands,' is a comforting and hearty Lao noodle soup. It features chewy, handmade tapioca and rice flour noodles simmered directly in a rich, aromatic chicken broth infused with lemongrass, galangal, and kaffir lime leaves. Served with shredded chicken and a variety of fresh garnishes and condiments, it's a soul-warming dish that embodies Lao comfort food.

๐ง Ingredients
- 3 lbs Whole chicken or chicken pieces (bone-in)
- 5 liters Water
- 1 large Yellow onion, quartered
- 2 inch piece Ginger, sliced
- 2 stalks Lemongrass stalks, bruised
- 6 leaves Kaffir lime leaves, torn
- 1 tbsp Garlic, minced
- 3 tbsp Fish sauce
- 1 tsp Salt
- 1.5 cups Rice flour
- 1.5 cups Tapioca flour
- 2 cups Boiling water
- 1 tbsp Optional: MSG
- 6 tbsp Optional: Chicken bouillon
- to taste For Garnish: Cilantro, green onions, fried garlic, lime wedges, chili oil
๐จโ๐ณ Instructions
- 1
Prepare the broth aromatics: Char the onion quarters and ginger slices on a dry skillet or over an open flame until lightly browned and fragrant. Roughly chop them.
๐ก Tip: Charring the aromatics adds depth and a smoky flavor to the broth. - 2
In a large pot, combine the chicken, water, charred onion, charred ginger, bruised lemongrass, torn kaffir lime leaves, minced garlic, fish sauce, salt, and optional MSG and chicken bouillon. Bring to a boil, then reduce heat, cover, and simmer for at least 1 hour, or until the chicken is tender.
๐ก Tip: Using bone-in chicken pieces will yield a richer broth. - 3
Remove the chicken from the broth. Once cool enough to handle, shred the meat and set aside. Strain the broth, discarding the solids, and return it to the pot.
๐ก Tip: Straining the broth ensures a clear soup base. - 4
To make the noodles: In a large bowl, combine the rice flour and tapioca flour. Gradually pour in the boiling water while mixing with a spatula or in a stand mixer with a dough hook until a smooth, non-sticky dough forms. You may need to adjust the flour or water slightly.
๐ก Tip: Using boiling water is crucial for the correct noodle texture. - 5
Dust a clean work surface with rice flour. Knead the dough for about 4 minutes until supple. Roll the dough into a thick log, divide into 8 portions, and roll each portion into a 1/8-inch thick, 6-inch long sheet.
๐ก Tip: Keep the dough covered with a damp towel to prevent it from drying out. - 6
Slice the dough sheets into noodles about 1/4 inch wide. Dust lightly with rice flour to prevent sticking. Keep covered.
๐ก Tip: The thickness of the noodles can be adjusted to your preference. - 7
Bring the strained broth back to a rolling boil. Add the fresh noodles and cook for 1-2 minutes, stirring minimally, until they float to the surface.
๐ก Tip: Cook the noodles directly in the broth to thicken it with released starch. - 8
Ladle the soup and noodles into serving bowls. Top with shredded chicken and your desired garnishes like cilantro, green onions, fried garlic, lime wedges, and chili oil.
๐ก Tip: Serve immediately for the best texture.
๐ก Pro Tips
- โFor a quicker version, use rotisserie chicken and store-bought chicken broth, but make the noodles from scratch.
- โThe ratio of rice flour to tapioca flour can be adjusted for desired noodle chewiness (more tapioca for chewier).
- โCharring the onion and ginger is optional but highly recommended for added depth.
โจ Twist Ideas
Inspiration for your own version of this recipe
- Some variations include adding pork or seafood for the broth.
- Add other vegetables like bean sprouts or morning glory to the soup.
- Adjust the seasoning with more fish sauce, salt, or sugar to your taste.