Authentic Tom Kha Gai

Featured in: Simple One-Pot Comfort Meals

This beloved Thai classic combines rich coconut milk with succulent chicken thighs, creating a velvety broth that's simultaneously creamy, tangy, and delicately spicy. The magic lies in the aromatic infusion of lemongrass, galangal, and makrut lime leaves—essential ingredients that deliver that unmistakable Thai flavor profile.

The soup comes together in just 40 minutes, starting with a flavorful broth base that's gently simmered to extract maximum aromatic compounds. Thinly sliced chicken cooks quickly in the fragrant liquid, while mushrooms add earthy depth. The finishing balance of fish sauce, palm sugar, and fresh lime juice creates the perfect sweet-sour-salty harmony that makes Tom Kha Gai so addictive.

Updated on Tue, 27 Jan 2026 21:13:01 GMT
Steaming Authentic Tom Kha Gai soup in a rustic bowl, showcasing tender chicken and sliced mushrooms in creamy coconut broth. Save
Steaming Authentic Tom Kha Gai soup in a rustic bowl, showcasing tender chicken and sliced mushrooms in creamy coconut broth. | birchwhisk.com

Experience the soul-warming flavors of Authentic Tom Kha Gai, a classic Thai soup that perfectly balances creaminess with citrusy brightness. This fragrant dish features tender chicken thighs simmered in a rich coconut milk broth, infused with the essential trio of lemongrass, galangal, and makrut lime leaves for an unmistakably traditional taste.

Steaming Authentic Tom Kha Gai soup in a rustic bowl, showcasing tender chicken and sliced mushrooms in creamy coconut broth. Pin it
Steaming Authentic Tom Kha Gai soup in a rustic bowl, showcasing tender chicken and sliced mushrooms in creamy coconut broth. | birchwhisk.com

Whether you're looking for a light lunch or a sophisticated starter, this soup captures the essence of Thai comfort food. Its delicate balance of salty, sour, and sweet notes ensures a satisfying culinary journey in every spoonful.

Ingredients

  • Aromatics & Broth: 3 cups chicken broth, 1 stalk lemongrass (trimmed and smashed), 4 slices fresh galangal, 4 makrut lime leaves (torn), 3 Thai birds eye chilies (crushed).
  • Main Ingredients: 1 lb boneless, skinless chicken thighs (thinly sliced), 14 oz full-fat, unsweetened coconut milk, 5 oz fresh mushrooms (sliced), 1 medium shallot (thinly sliced).
  • Seasonings & Finishing: 2 tbsp fish sauce, 1 tbsp lime juice, 1 tsp palm sugar, 2 tbsp fresh cilantro, 2 green onions, lime wedges for serving.
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Instructions

Step 1: Infuse the Broth
In a medium pot, bring the chicken broth to a gentle simmer. Add lemongrass, galangal, makrut lime leaves, and chilies. Simmer for 5–7 minutes to infuse the broth with aromatics.
Step 2: Cook the Chicken
Add the sliced chicken and shallot. Cook for 3–4 minutes, until the chicken turns opaque.
Step 3: Simmer with Coconut Milk
Add the mushrooms and pour in the coconut milk. Stir gently and bring back to a simmer. Do not let it boil vigorously.
Step 4: Season and Balance
Season the soup with fish sauce, palm sugar, and lime juice. Adjust seasoning to taste, balancing salty, sour, and sweet.
Step 5: Finish
Remove from heat. Discard the lemongrass, galangal slices, and lime leaves if desired.
Step 6: Serve
Ladle the soup into bowls. Garnish with cilantro, green onions, and serve with lime wedges.

Zusatztipps für die Zubereitung

When preparing this soup, it is crucial not to let the broth boil vigorously after adding the coconut milk, as this can cause the milk to separate. For the most authentic experience, seek out fresh galangal and makrut lime leaves at an Asian market, as these specific aromatics are essential for the traditional flavor profile.

Varianten und Anpassungen

To create a vegetarian version of this dish, use vegetable broth, swap the chicken for firm tofu, and use soy sauce instead of fish sauce. You can also adjust the heat level by increasing or decreasing the number of crushed Thai birds eye chilies used in the first step.

Serviervorschläge

For a heartier, complete meal, serve the Tom Kha Gai with a side of steamed jasmine rice. Be sure to provide extra lime wedges on the side so guests can adjust the acidity to their liking, and finish with a generous garnish of fresh cilantro and green onions.

A close-up of Authentic Tom Kha Gai garnished with fresh cilantro and green onions, served with lime wedges on the side. Pin it
A close-up of Authentic Tom Kha Gai garnished with fresh cilantro and green onions, served with lime wedges on the side. | birchwhisk.com

Enjoy this steaming bowl of Authentic Tom Kha Gai, a recipe that brings the vibrant and comforting tastes of Thailand directly to your home kitchen.

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Frequently Asked Questions

What makes Tom Kha Gai different from Tom Yum?

Tom Kha Gai features coconut milk as its base, creating a rich, creamy soup with mellow spice. Tom Yum is a clear, fiery broth without coconut. The galangal and lemongrass remain common to both, but Tom Kha offers a velvety texture and subtler heat.

Can I substitute galangal with ginger?

While ginger can work in a pinch, galangal has a distinct piney, citrusy flavor that's essential to authentic Tom Kha Gai. If unavailable, use fresh ginger but add some kaffir lime leaf to compensate for the missing complexity. Asian markets typically carry galangal fresh or frozen.

How do I prevent the coconut milk from curdling?

Keep the heat at a gentle simmer—never boil vigorously. Add coconut milk after the broth is infused and stir gently. Constant high heat causes coconut milk to separate. If separation occurs, the flavor remains unchanged, though the texture becomes less uniform.

What's the best way to adjust the seasoning?

Tom Kha Gai relies on balancing three primary flavors: salty from fish sauce, sour from lime juice, and sweet from palm sugar. Start with the recommended amounts, then add fish sauce for depth, lime for brightness, and sugar to round out sharp edges. Taste after each addition.

Can I make this soup vegetarian?

Replace chicken broth with quality vegetable broth, substitute tofu for sliced chicken thighs, and use soy sauce or vegetarian fish sauce instead of traditional fish sauce. The aromatic base remains unchanged, preserving the essential Thai character of the dish.

How long will leftovers keep?

Stored in an airtight container, Tom Kha Gai keeps for 3-4 days refrigerated. The flavors often improve overnight as they meld. Reheat gently over low-medium heat, stirring occasionally. Avoid boiling to prevent coconut milk separation. Freezing is possible but may slightly alter texture.

Authentic Tom Kha Gai

Creamy coconut soup with chicken and aromatic Thai herbs

Prep Time
15 Minutes
Cook Time
25 Minutes
Total Time
40 Minutes


Difficulty: Medium

Cuisine: Thai

Yield: 4 servings

Dietary: Dairy-Free, Gluten-Free, Low-Carb

Ingredients

Aromatics & Broth

01 3 cups chicken broth
02 1 stalk lemongrass, trimmed and smashed
03 4 slices fresh galangal
04 4 makrut lime leaves, torn into pieces
05 3 Thai birds eye chilies, lightly crushed

Main Ingredients

01 1 pound boneless, skinless chicken thighs, thinly sliced
02 14 fluid ounces full-fat, unsweetened coconut milk
03 5 ounces fresh mushrooms, sliced
04 1 medium shallot, thinly sliced

Seasonings & Finishing

01 2 tablespoons fish sauce
02 1 tablespoon fresh lime juice
03 1 teaspoon palm sugar
04 2 tablespoons fresh cilantro, chopped
05 2 green onions, sliced
06 Lime wedges for serving

Instructions

Step 01

Infuse the broth: In a medium pot, bring chicken broth to a gentle simmer. Add lemongrass, galangal, makrut lime leaves, and chilies. Simmer for 5 to 7 minutes to extract aromatic flavors.

Step 02

Cook the chicken: Add sliced chicken and shallot. Cook for 3 to 4 minutes until chicken turns opaque and cooked through.

Step 03

Incorporate coconut milk: Add mushrooms and pour in coconut milk. Stir gently and return to a simmer. Maintain gentle heat without vigorous boiling.

Step 04

Season to balance: Season with fish sauce, palm sugar, and lime juice. Taste and adjust seasonings to achieve balanced salty, sour, and sweet notes.

Step 05

Finish the soup: Remove from heat. Discard lemongrass, galangal slices, and lime leaves if preferred for cleaner presentation.

Step 06

Serve and garnish: Ladle soup into bowls. Garnish with cilantro and green onions. Serve with lime wedges on the side.

Tools You'll Need

  • Medium pot
  • Chef's knife
  • Cutting board
  • Ladle

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains fish (fish sauce)
  • Contains coconut (tree nut concern for some individuals)
  • Verify all sauces are gluten-free if required
  • Check all ingredient labels for hidden allergens

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 320
  • Total Fat: 18 g
  • Total Carbohydrate: 10 g
  • Protein: 27 g