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Thai Coconut Soup (Tom Kha Gai)

Thai Coconut Soup (Tom Kha Gai)

A fragrant, creamy Thai soup of chicken simmered in coconut milk with galangal, lemongrass, and lime leaves.

Details

Prep Time 15 mins
Cook Time 20 mins
Servings 4
Difficulty Easy
Priya Sharma
Priya Sharma
Spice & Flavor Architect

Ingredients

  • 1 lb boneless chicken thighs, sliced
  • 2 cans (14 oz each) coconut milk
  • 1 cup chicken broth
  • 3 stalks lemongrass, cut into 2-inch pieces and bruised
  • 6 slices galangal (or ginger)
  • 4 kaffir lime leaves, torn
  • 8 oz mushrooms, sliced
  • 3 tbsp fish sauce
  • 2 tbsp lime juice
  • 1 tbsp sugar
  • Thai bird's eye chilies, smashed
  • Fresh cilantro, for garnish

Instructions

  1. 1

    Bring coconut milk and chicken broth to a gentle simmer. Add lemongrass, galangal, and lime leaves. Simmer 10 minutes to infuse.

  2. 2

    Add sliced chicken and mushrooms. Cook 8-10 minutes until chicken is cooked through.

  3. 3

    Season with fish sauce, lime juice, and sugar. Adjust to balance salty, sour, and sweet.

  4. 4

    Add smashed chilies for heat.

  5. 5

    Ladle into bowls, garnish with fresh cilantro. Do not eat the lemongrass or galangal pieces.

About This Recipe

The intoxicating aroma of Tom Kha Gai, or Thai Coconut Soup, is a cornerstone of Thai culinary tradition, beloved for its elegant balance of creamy richness, vibrant sourness, and subtle heat. Unlike its fiery cousin, Tom Yum, Tom Kha Gai offers a soothing, luxurious experience, making it a favorite for those seeking comfort and complex flavor without overwhelming spice. Its distinct character comes from the interplay of what I call the 'holy trinity' of Thai aromatics: galangal, lemongrass, and kaffir lime leaves. These ingredients are not merely flavorings but fundamental building blocks that infuse the coconut milk and chicken broth with their unique, uplifting fragrance. Proper preparation involves gently simmering these aromatics to fully release their essential oils, creating a deeply layered base before the chicken, mushrooms, and final seasonings of fish sauce, lime juice, and sugar are introduced. While chicken (Gai) is traditional, this soup is wonderfully adaptable; shrimp (Goong) or even a medley of mushrooms and tofu for a vegetarian version (Hed/Tao Hu) are delicious variations. Always serve this fragrant elixir piping hot, ideally with a side of jasmine rice to soak up every last drop of the sublime broth.

Tips & Tricks

  • To maximize the aromatic impact of lemongrass and galangal, gently bruise them with the back of a knife or a pestle before adding them to the soup. This breaks down the fibers, allowing their fragrant oils to infuse the broth more effectively.
  • If fresh galangal is unavailable, ginger can be used as a substitute, though it will impart a slightly different, spicier flavor profile. For an added layer of freshness and color, consider stirring in some thinly sliced bell peppers or snap peas towards the end of cooking.
  • Tom Kha Gai can be made a day in advance; the flavors often deepen overnight. Store in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop over low heat, stirring occasionally, to prevent the coconut milk from separating.
  • Serve this comforting soup as a main course with steamed jasmine rice, allowing the rice to absorb the rich, aromatic broth. For an authentic Thai experience, pair it with a crisp green salad or a simple stir-fry to complete the meal.

Nutrition Facts

Per serving (approximate)

560
calories
21g
protein
11g
carbs
46g
fat
1g
fiber