Spicy Thai Lemongrass Soup (Print View)

Aromatic Thai-style soup featuring bold citrus notes, chile heat, and fragrant herbs in a savory broth.

# What You’ll Need:

→ Broth Base

01 - 4 cups chicken or vegetable stock
02 - 2 stalks lemongrass, trimmed and smashed
03 - 4 kaffir lime leaves, torn
04 - 3 slices galangal or ginger
05 - 2 Thai bird's eye chiles, sliced

→ Vegetables and Aromatics

06 - 7 oz mushrooms, sliced
07 - 2 medium tomatoes, cut into wedges
08 - 1 small onion, sliced
09 - 3 cloves garlic, smashed

→ Protein

10 - 10 oz shrimp, peeled and deveined or tofu

→ Seasonings and Finish

11 - 3 tablespoons fish sauce or soy sauce
12 - 2 tablespoons fresh lime juice
13 - 1 teaspoon sugar
14 - 1 teaspoon chili paste (nam prik pao), optional
15 - Fresh cilantro leaves, for garnish
16 - 2 green onions, sliced
17 - Lime wedges, to serve

# Directions:

01 - In a medium pot, bring the stock to a gentle boil. Add lemongrass, kaffir lime leaves, galangal, chiles, garlic, and onion. Simmer for 10 minutes to allow flavors to infuse thoroughly.
02 - Add mushrooms and tomatoes to the pot. Cook for 5 minutes until mushrooms are tender.
03 - Add shrimp or tofu and simmer just until shrimp turn pink and cook through, approximately 2 to 3 minutes.
04 - Stir in fish sauce, lime juice, sugar, and chili paste if using. Taste and adjust seasoning for salt, sourness, and heat according to preference.
05 - Remove from heat. Ladle soup into bowls and garnish with cilantro and green onions. Serve with lime wedges on the side.

# Expert Advice:

01 -
  • It comes together faster than you'd expect, with most of the work being simple prep rather than complicated technique.
  • The flavor balance teaches you something about cooking that extends far beyond Thai food, showing how sour, spicy, salty, and savory can dance together.
  • One pot means minimal cleanup, which makes it easy to justify making this on a weeknight instead of ordering takeout.
02 -
  • The flavor balance is everything in this soup, and it's personal—you absolutely should taste and adjust the seasoning at the end, adding more lime if it feels flat or more fish sauce if the broth tastes watery.
  • Don't skip smashing the lemongrass and garlic; you're breaking cell walls to release flavor, not just adding them for looks, which is why this small step changes the entire outcome.
03 -
  • Save a strip of lemongrass's tender inner core and simmer it separately in coconut milk if you want to make a creamy Tom Yum variation without losing the original's brightness.
  • Buy pre-smashed garlic in a jar for busy nights; it won't give you quite the same fresh kick, but it eliminates a step and still delivers flavor.
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