Thai-Style Coconut Chicken Soup (Tom Kha Gai)

The balance of hot, sour, salty, and sweet is what makes this soup sing — taste and adjust the fish sauce and lime at the end rather than guessing up front.

Instructions

1. 1

   In a large pot, combine the coconut milk and chicken broth over medium heat.

2. 2

   Add the lemongrass, galangal, and lime leaves. Bring to a gentle simmer (do not let it boil hard, which can cause coconut milk to separate) and let steep for 8–10 minutes to infuse the aromatics into the broth.

3. 3

   Add the sliced chicken thighs and mushrooms. Simmer gently until the chicken is cooked through, 6–8 minutes.

4. 4

   Stir in the fish sauce, brown sugar, and Thai chiles. Simmer 2–3 minutes more.

5. 5

   Remove from heat and stir in the lime juice — adding it off the heat preserves its bright flavor, since boiling citrus juice mutes it.

6. 6

   Taste and adjust: add more fish sauce for saltiness, more lime juice for tang, or more sugar to round out the heat. The final balance should hit sour, salty, and slightly sweet all at once.

7. 7

   Remove the lemongrass stalks, galangal slices, and lime leaves before serving (they're aromatics, not meant to be eaten).

8. 8

   Ladle into bowls, garnish with cilantro and green onions, and serve hot with steamed jasmine rice on the side.