Thai Khao Si Coconut Curry Soup – This bold and fragrant Chicken Kaho Soi is easy to make and oh-so satisfying. This is a must-try Authentic Thai recipe my family and I ate on our travels!

A top down view of a bowl of khao soi with chopsticks on the bowl's rim.

Why We Love This Thai Khao Soi Recipe

One summer, our family had the opportunity to spend a month in Southeast Asia. We started our adventure in Thailand and then traveled through Laos and Vietnam.

Although we devoured many fabulous meals in Chiang Mai, the most monumental dish we tasted was Khao Soi, Chiang Mai’s signature dish!

This classic northern Thai Noodle Soup is packed with complexity and intrigue. It’s a Coconut Curry Soup loaded with protein, egg noodles, fried crunchy noodles, and fresh herbs.

The soup base offers a spicy-tangy-savory coconut taste that complements all types of protein options… Although we like it best with chicken or beef.

Kao Soi is sold in noodle shops all over Chiang Mai. Restaurant patrons sit and watch as talented professional noodle-makers crank out fresh egg noodles at high speed. It is a feast for all five senses.

Yet, even if you never get the chance to visit Thailand, you can make this simple coconut curry soup at home!

A side view of a bowl of coconut curry soup.

What Ingredients You Will Need

All the Asian ingredients can be found in most larger grocery stores with a decent “international” section.

Although I suggest adding the scallions and cilantro to lighten the flavor at the end, the garnishes are completely optional.

  • Thin Egg Noodle Nests – or angel hair pasta instead
  • Unsweetened Coconut Milk – for flavor and thickening
  • Red Curry Paste – canned or jarred
  • Ground Turmeric
  • Boneless Skinless Chicken Thighs
  • Chicken Broth
  • Fish Sauce – the stinkier the better *wink*
  • Fresh Lime Juice
  • Optional Garnishes: chopped scallions, chopped cilantro, fried egg noodles, lime wedges

How To Make Thai Coconut Curry Soup

Step 1 – Boil the Pasta

Set a large pot of water over high heat. Once boiling, cook the pasta according to the package instructions. Drain and set aside.

Step 2 – Reduce the Coconut Milk

Meanwhile, set another pot over medium heat. Add part of the coconut milk. Cook the coconut milk down into a thick paste. This gives the Chicken Khao Soi its unique flavor and silky texture.

Step 3 – Add Spices and Chicken

Add the curry paste and turmeric. Stir and sautรฉ. Then, add in the chopped chicken pieces.

Step 4 – Simmer

Pour in the remaining coconut milk, chicken broth, and fish sauce. Bring to a boil, then lower the heat and simmer to develop the flavor.

Step 5 – Add the Pasta

Stir in the cooked pasta and some fresh-squeezed lime juice.

Step 6 – Want to Get Fancy?

If you want to top the Khao Soi in the traditional Chiang Mai style with crunchy fried noodles, fry some extra egg noodle nests in oil. Fry for approximately 20 seconds per side.

Step 7 – Add garnish

Top the red curry soup with fresh chopped herbs and crunchy noodles if desired.

Get The Full (Printable) Chicken Khao Soi Coconut Curry Soup Recipe & Video Below. Enjoy!

Frequently Asked Questions

What protein can I use in khao soi?

Our recipe includes chicken. However, beef, pork, and even shrimp can be added to the soup base in Thailand.

If using pork loin or steak, slice them paper-thin and cook as directed in the recipe below.

If using shrimp, add them at the end (with the noodles) and simmer for 3 minutes to cook the shrimp.

Where Can I Find The Ingredients?

You should be able to find all the Kao Soi ingredients at most national (or large regional) grocery chains, especially if the store has a good international section.

However, you can also find red curry paste, coconut milk, and fish sauce at Asian markets and online!

Can I Make Gluten-Free Thai Coconut Curry Soup?

Instead of using egg noodles or angel hair pasta, buy Gluten-Free spaghetti to add to the soup.

Just be aware, gluten-free noodles tend to break down faster than regular pasta. So if made with GF noodles, this does not make a great leftover.

P.S. Most brands of red curry paste and fish sauce are gluten-free but double-check to be sure.

How Long Does Chicken Khao Soi Last In the Refrigerator?

Store the leftovers in an airtight container and refrigerate for up to 5 days.

If the pasta absorbs most of the liquid, you can add more broth to loosen it up.

A side view of two gray bowls of coconut curry soup.

Looking for More Thai Recipes? Be Sure to Try:

Get The Full (Printable) Thai Khao Soi Coconut Curry Soup Recipe & Video Below. Enjoy!

Thai Khao Soi Soup
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Thai Khao Soi (Coconut Curry Soup)

Prep Time: 10 minutes
Cook Time: 28 minutes
Total Time: 38 minutes
This bold and fragrant Chicken Kaho Soi is easy to make and oh-so satisfying. This is a must-try Authentic Thai recipe my family and I ate on our travels!
Servings: 6

Video

Ingredients

Optional Garnishes:

Instructions

  • Set a large pot of water on the stovetop over high heat. Bring to a boil. Once boiling, cook the pasta according to the package instructions. Then drain off the boiling water and set the cooked pasta aside.
  • Meanwhile, set another large pot over medium heat. Add 1 cup coconut milk. Bring to a boil and cook the coconut milk down into a thick paste that starts to separate.
  • Once the coconut milk separates, add the curry paste and tumeric. Cook the mixture 2-3 minutes. Then add in the chopped chicken pieces. Stir and cook for 5 minutes.
  • Once the chicken looks mostly cooked, pour in the remaining coconut milk, chicken broth, and fish sauce. Bring to a boil, then lower the heat and simmer for 10 minutes.
  • While the soup is cooking, chop/prep the garnishes. Get Fancy: If you want to top the Khao Soi in the traditional Chiang Mai style with fried noodles, place 1-2 inches of vegetable oil in a separate pot. Once it is smoking hot, drop 2-3 extra egg noodle nests in the oil and fry for approximately 20 seconds per side. Remove and drain. Then separate into 6 chunks for the garnish.
  • Once the soup base has simmered for 10 minutes, stir in the cooked pasta and lime juice. Stir and simmer for 1 minute to warm the noodles.
  • Ladel the soup into bowls. Top with chopped scallions, cilantro, fried noodles, and lime wedges if desired.

Notes

Protein Options: If you are not a fan of chicken, Kao Soi can be made with shrimp, thinly sliced pork, or thinly sliced beef.

Nutrition

Serving: 1.5cups, Calories: 553kcal, Carbohydrates: 42g, Protein: 29g, Fat: 31g, Saturated Fat: 23g, Cholesterol: 129mg, Sodium: 2147mg, Potassium: 858mg, Fiber: 4g, Sugar: 5g, Vitamin A: 1233IU, Vitamin C: 22mg, Calcium: 72mg, Iron: 4mg
Course: Main Course, Soup
Cuisine: Thai
Author: Sommer Collier
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