Tom Yum Gai Thai Soup

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This traditional Thai classic brings together tender chicken slices, earthy mushrooms, and fresh vegetables in a fragrant broth that balances spicy heat with bright citrus notes. The aromatic base starts with lemongrass, galangal, and kaffir lime leaves infusing the stock, while roasted chili paste adds deep, smoky complexity. Fresh lime juice provides the signature sour finish that makes Tom Yum so distinctive.

Perfect for cold weather or whenever you crave something warming and invigorating, this soup comes together in just 35 minutes. The broth can be customized to your preferred heat level, and the vegetables maintain their texture while absorbing all those beautiful Thai flavors. Serve piping hot with extra lime wedges on the side for squeezing.

Updated on Wed, 28 Jan 2026 14:03:00 GMT
A steaming bowl of homemade Tom Yum Gai showcases tender chicken slices, mushrooms, and cherry tomatoes in a spicy-sour Thai broth.  Pin it
A steaming bowl of homemade Tom Yum Gai showcases tender chicken slices, mushrooms, and cherry tomatoes in a spicy-sour Thai broth. | tastysfenj.com

The scent of lemongrass and lime leaves hit me like a welcome wave the first time I visited my friend Dao's kitchen in Bangkok. Her hands moved with practiced precision, bruising stalks of lemongrass against the cutting board as she laughed at my wide eyes. 'Tom Yum is how we chase away colds and bad moods,' she told me, dropping chiles into the fragrant broth with a sizzle. That afternoon, huddled over steaming bowls as rain pattered against the windows, I understood why this soup is Thailand's liquid comfort.

Last winter when my sister caught that terrible flu, I showed up at her apartment with a portable burner and all the fixings for Tom Yum Gai. The sharp aroma of lime and chiles cut through the stuffy air as I worked in her tiny kitchen. By the time she ventured out from beneath her blanket fortress, the steam from the soup had fogged her windows. Her first sip was followed by wide eyes, then a smile, then proper hunger for the first time in days.

Ingredients

  • Nam Prik Pao (Thai Roasted Chili Paste): This complex paste is the secret weapon that gives authentic depth to the broth, offering smoky sweetness that balances the sour lime.
  • Lemongrass: Always remove the tough outer layers and bruise the stalks before adding them to release their citrusy oils fully into the broth.
  • Kaffir Lime Leaves: Tear these just before adding to release their intense aromatic oils, and remember they're meant to flavor the broth but not be eaten whole.
  • Chicken: Slice the meat against the grain and quite thinly so it cooks quickly without becoming tough in the hot broth.
  • Fish Sauce: Don't be put off by the intense aroma from the bottle, as it mellows beautifully in cooking and provides that umami foundation that makes Thai food so addictive.

Instructions

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Infuse the Broth:
Bring your chicken stock to a gentle rolling boil before adding the aromatic powerhouses: lemongrass, kaffir lime leaves, galangal, and those smashed chiles. The kitchen will start filling with a citrusy, spicy perfume as these ingredients release their essence.
Cook the Chicken:
Slip those thin slices of chicken into the fragrant broth and watch them change from pink to opaque white in just minutes. Keep the heat at a gentle simmer to ensure tenderness, not toughness.
Add the Vegetables:
Tumble in the mushrooms, tomatoes, and onion, giving everything a gentle stir to immerse them in the flavorful liquid. These need just enough time to soften while maintaining some texture and brightness.
Build the Flavor Profile:
Now comes the magic moment when you transform the broth with nam prik pao, fish sauce, and sugar. Watch how the color deepens slightly and the aroma becomes more complex and inviting.
Add the Brightness:
Off the heat, stir in that fresh lime juice and watch the soup come alive. This final acidic touch balances everything and creates that characteristic Tom Yum tang that makes your mouth water in anticipation.
Serve with Flair:
Ladle the steaming soup into bowls and crown with fresh cilantro and perhaps those extra chile slices if youre feeling brave. The contrast of the hot soup with the cool, fresh garnishes creates a delightful sensory experience.
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Fragrant steam rises from vibrant Tom Yum Gai soup garnished with fresh cilantro and lime wedges on a rustic wooden table.  Pin it
Fragrant steam rises from vibrant Tom Yum Gai soup garnished with fresh cilantro and lime wedges on a rustic wooden table. | tastysfenj.com

The first time I served Tom Yum Gai at a dinner party, my friend Michael, who normally picks cautiously at spicy foods, couldn't stop eating. Between spoonfuls, he told us about his backpacking trip through Thailand years ago, stories he hadn't shared before. Something about the familiar aroma had unlocked those memories, and suddenly we were all transported to night markets and beachside meals through his vivid descriptions, the soup creating connections beyond just nourishment.

Finding the Right Ingredients

When I couldn't find galangal at my local market, I almost postponed making Tom Yum until an elderly Thai woman shopping nearby noticed my frustrated expression. 'Fresh ginger works too,' she whispered, 'just use a little less and add an extra squeeze of lime at the end.' Her practical wisdom reminded me that while traditional ingredients create authenticity, adaptations aren't failures but part of making a recipe your own. Now I keep both on hand, using whichever speaks to me that day.

Controlling the Heat

Thai chiles are tiny powerhouses that can overwhelm the uninitiated. I've learned to start with just one, lightly crushed, when cooking for mixed company. The beauty of Tom Yum lies in its customizability, so I now serve extra sliced chiles on the side, allowing each person to sprinkle them into their bowl according to their heat tolerance. This small adjustment has made the soup accessible to everyone from my spice-adverse mother to my husband who adds chiles to his breakfast cereal.

Making It a Complete Meal

While Tom Yum Gai stands gloriously on its own, I've found it transforms into a more substantial meal with a few thoughtful additions. Sometimes I double the chicken and mushrooms or add a handful of rice noodles for heartier appetites, especially when serving it as a main course on chilly evenings.

  • Serve alongside a bowl of jasmine rice to soak up the flavorful broth and provide a cooling counterpoint to the soup's intensity.
  • A simple side of cucumber salad with rice vinegar and a touch of sugar creates a refreshing contrast to the hot, spicy soup.
  • For a proper Thai meal experience, pair with fresh spring rolls or crispy fried wontons for textural contrast.
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Spooning into a colorful serving of Tom Yum Gai reveals aromatic chiles, lemongrass, and bright lime juice in every bite. Pin it
Spooning into a colorful serving of Tom Yum Gai reveals aromatic chiles, lemongrass, and bright lime juice in every bite. | tastysfenj.com

This soup has become my culinary first aid kit, appearing at my table when celebrations call or when comfort is needed. Like the best of Thai cooking, it teaches us that balance isnt just a flavor principle but perhaps a life philosophy too, reminding us that sour moments need sweetness, heat requires coolness, and simple ingredients can create extraordinary experiences.

Recipe Questions & Answers

What makes Tom Yum Gai different from other Thai soups?

Tom Yum Gai features the distinctive spicy-sour balance that defines Tom Yum, with the sharp heat of fresh chiles cut by bright lime juice. Unlike creamy Tom Kha Gai which uses coconut milk, this version has a clear broth enriched with roasted chili paste for depth.

Can I make this soup less spicy?

Absolutely. Reduce the amount of Thai birds eye chiles in the broth, or omit them entirely. You can also decrease the nam prik pao (roasted chili paste) to 1 tablespoon instead of 2. The soup will still be flavorful thanks to the aromatic herbs.

What's the best substitute for galangal?

Fresh ginger works as a substitute, though it has a slightly different flavor profile. Use slightly more ginger than the galangal called for, as galangal has a more intense, piney taste. Avoid dried galangal powder if possible.

Can I use other proteins besides chicken?

Yes, this soup works beautifully with shrimp (becoming Tom Yum Goong), or even tofu for a vegetarian version. Adjust cooking times accordingly—shrimp cooks in just 2-3 minutes, while tofu can be added with the vegetables.

How do I store and reheat leftovers?

Store cooled soup in an airtight container for up to 3 days. The flavors often improve overnight. Reheat gently on the stovetop, adding a splash more water or stock if needed. Avoid boiling vigorously to prevent the chicken from becoming tough.

Tom Yum Gai Thai Soup

Spicy-sour Thai soup with tender chicken, mushrooms, and aromatic herbs in a bold citrus broth.

Prep time
15 min
Time to cook
20 min
Overall time
35 min
Created by Benjamin Holloway


Skill level Medium

Cuisine type Thai

Makes 4 Number of servings

Dietary details No dairy, Without gluten

What You'll Need

Chicken

01 12 oz boneless, skinless chicken breast or thighs, thinly sliced

Broth

01 5 cups chicken stock
02 2 stalks lemongrass, tough outer leaves removed, cut into 2-inch pieces and smashed
03 5 kaffir lime leaves, torn
04 3 slices galangal or fresh ginger
05 2 Thai bird's eye chiles, smashed

Vegetables

01 5 oz oyster or button mushrooms, sliced
02 2 medium tomatoes, cut into wedges
03 1 small onion, sliced

Seasonings

01 2 tablespoons nam prik pao Thai roasted chili paste
02 2 tablespoons fish sauce
03 1 tablespoon sugar
04 1/2 teaspoon salt
05 2 tablespoons fresh lime juice, plus extra for serving

Garnish

01 2 tablespoons fresh cilantro, chopped
02 1-2 Thai chiles, sliced, optional

Directions

Step 01

Infuse the broth base: In a large saucepan, bring chicken stock to a gentle boil. Add lemongrass, kaffir lime leaves, galangal, and smashed chiles. Simmer for 5 minutes to develop aromatic flavors.

Step 02

Cook the chicken: Add chicken slices and simmer for 3-4 minutes until cooked through. Skim any foam from the surface.

Step 03

Add vegetables: Stir in mushrooms, tomatoes, and onion. Simmer for 3-4 minutes until vegetables are tender.

Step 04

Season the soup: Add nam prik pao, fish sauce, sugar, and salt. Stir well and simmer for 2 minutes. Adjust seasoning to taste.

Step 05

Finish with lime juice: Remove from heat and stir in fresh lime juice. Taste and adjust sourness or salt as desired.

Step 06

Serve: Ladle into bowls and garnish with fresh cilantro and sliced chiles if desired. Serve immediately with lime wedges.

What You'll Need

  • Large saucepan or pot
  • Sharp knife
  • Cutting board
  • Ladle

Allergy info

Review each item for allergens, and talk to a doctor if you're unsure.
  • Contains fish from fish sauce
  • May contain shellfish traces in commercial nam prik pao products
  • Verify labels for hidden gluten despite typical gluten-free classification

Nutrition info (per serving)

Nutrition details are for your reference only and don't replace healthcare guidance.
  • Calories count: 200
  • Fat content: 5 g
  • Carbohydrates: 12 g
  • Protein amount: 26 g