Thai Coconut Chicken Soup with Lemongrass
Tom Kha Gai is a fragrant Thai coconut soup balancing creamy richness with bright citrus and spicy heat. Chicken broth simmers with aromatics like lemongrass, ginger, and makrut lime leaves before coconut milk creates a silky base. Red Thai chiles and fish sauce deliver characteristic depth and warmth. Serve as a comforting starter or light main course, ideal for weeknight dinners or when craving bold Southeast Asian flavors. This version prioritizes clean technique and layered aromatic building.
Ingredients
- 3 cup chicken broth
- 2 chicken breast, diced into bite-sized chunks
- ½ white onion, finely diced
- 1 stalk lemongrass, lightly bashed
- 1 inch chunk ginger, thinly sliced
- 5 makrut lime leaf, roughly tornlime zest1 teaspoon per 2 leavescitrus
sharper flavor
- 1 teaspoon brown sugar
- 2 small red Thai chile, halved
- 1 ½ tablespoon fish sauce
- 6 ounce white mushroom, sliced
- 3 cup coconut milk
- 1 lime, juiced
Instructions
- 1
Bring chicken broth to a boil in a large pot over medium-high heat.
- 2
Add chicken, onion, lemongrass, ginger, and makrut lime leaves. Stir and simmer for 15 minutes.
- 3
Stir in brown sugar, chiles, fish sauce, mushrooms, and coconut milk. Simmer for 3 minutes.
- 4
Remove from heat and add lime juice.
- 5
Serve with lime wedges and cilantro if desired.
Tips
Lightly bash lemongrass to release oils without shredding; remove before serving or leave for flavor depth.
Don't boil coconut milk vigorously after adding; gentle simmering prevents separation and preserves creamy texture.
Adjust heat with chile quantity and remove seeds for less spice; add lime juice to taste at the end.
Good to Know
Refrigerate in airtight container up to 3 days. Flavors deepen overnight. Reheat gently on stovetop without boiling.
Prepare aromatics (lemongrass, ginger, lime leaves, chiles) 1 day ahead. Cook soup same day for best coconut milk texture.
Ladle into bowls with lime wedges and fresh cilantro. Pair with jasmine rice or rice noodles for a fuller meal.
Common Mistakes
Boil coconut milk aggressively to avoid curdling and separation
Remove makrut lime leaves before serving to avoid tough, inedible pieces in mouth
Don't skip fish sauce; its funk anchors authentic depth despite initial aroma
Substitutions
Dairy-Free Swaps
General Alternatives
sharper flavor
FAQ
Can I make this vegetarian or vegan?
Substitute vegetable broth for chicken broth, omit chicken or use tofu, and swap fish sauce for soy sauce or miso paste. Coconut milk is naturally plant-based. Flavors will shift but remain balanced and satisfying.
What if I can't find makrut lime leaves?
Use lime zest (1 teaspoon per 2 leaves) or additional lime juice. Kaffir lime leaves provide authentic citrus-floral notes; zest approximates brightness but lacks depth. Regular lime works acceptably.
How long can I keep leftovers and can I freeze?
Refrigerate up to 3 days; flavors deepen overnight. Freezing separates coconut milk and degrades texture. Cool completely before storing. Thaw and reheat gently on stovetop, whisking to reincorporate cream.