Tom Yum Soup
Authentic Thai Tom Yum Soup recipe with shrimp, lemongrass, and aromatic herbs. Creamy, spicy, and tangy flavors in 45 minutes.
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Tom Yum Soup is Thailand's most beloved hot and sour soup, featuring a perfect balance of spicy, tangy, and aromatic flavors. This creamy version combines fresh shrimp with fragrant lemongrass, galangal, kaffir lime leaves, and Thai chilies in a rich, comforting broth enhanced with evaporated milk.
What sets this recipe apart is the homemade shrimp stock that forms the flavorful base, along with traditional Thai ingredients that create the authentic taste you'd find in Bangkok street stalls. Ready in just 45 minutes, this restaurant-quality soup brings the vibrant flavors of Thai cuisine straight to your kitchen.
Instructions
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Prepare the shrimp stock
Rinse 350g shrimp under cold water, then peel and devein them, reserving shells and heads. Set cleaned shrimp aside in refrigerator.
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Heat a large stockpot over medium-high heat and add reserved shrimp shells and heads. Sauté for 5-7 minutes until shells turn pink and fragrant, stirring occasionally.
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Add 4 cups water to the pot and scrape up any browned bits from the bottom. Bring to a boil, then reduce heat and simmer for 15-20 minutes until stock is flavorful and slightly reduced.
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Strain the stock through a fine mesh sieve into a clean bowl, pressing shells with a spoon to extract maximum liquid. Discard shells and return stock to pot.
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Prepare aromatics and build soup base
Smash 2 lemongrass stalks with the flat side of a knife, then cut into 2-inch pieces. Add lemongrass and any galangal to the simmering stock.
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Simmer stock with aromatics for 5 minutes to infuse flavors. Remove and discard lemongrass and galangal pieces using a slotted spoon.
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Slowly stir 1 cup evaporated milk into the hot stock. Add 1 cup sliced mushrooms and simmer for 2-3 minutes until mushrooms are tender.
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Season and finish soup
Stir in 3 tablespoons tom yum paste until completely dissolved. Add reserved shrimp and cook for 1-2 minutes until shrimp turn pink and are just cooked through.
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Remove pot from heat and stir in 1 teaspoon fish sauce and lime juice from 1 lime. Taste and adjust seasoning with additional fish sauce, lime juice, or tom yum paste as needed.
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Ladle soup into bowls and garnish with fresh cilantro leaves. Serve immediately while hot.
Tips
Use large, fresh shrimp when possible as they're harder to overcook and provide better flavor for the stock. If using frozen shrimp, add 1.5 teaspoons of shrimp paste to boost the broth's depth.
Prepare lemongrass by smashing it with the flat side of your knife before cutting - this releases more aromatic oils. Remove the tough outer layers to reveal the tender white interior.
Don't skip making shrimp stock from the shells - this step creates the authentic, rich flavor that sets restaurant-quality Tom Yum apart from shortcuts using plain chicken broth.
Add the lime juice after removing the soup from heat to preserve its bright, acidic flavor. Lime juice added during cooking can become bitter.
Thai roasted chili paste (nam prik pao) is crucial for authentic flavor and color. Find it at Asian markets or substitute with a mixture of Asian chili paste and chili oil.
Remove the aromatics (lemongrass, galangal, lime leaves) before serving, or warn guests not to eat them as they're used for flavoring only.
Taste and adjust the soup at the end - it should be a perfect balance of spicy, sour, salty, and slightly sweet. Add more fish sauce for saltiness, lime juice for sourness, or chili paste for heat.
For the best texture, add evaporated milk gradually while stirring to prevent curdling, and don't let the soup boil vigorously once the milk is added.
What is Tom Yum Soup?
Tom Yum is Thailand's national soup, a masterpiece of Thai culinary tradition that perfectly balances the four fundamental flavors: spicy, sour, salty, and sweet. The name "Tom Yum" literally translates to "boiling" (tom) and "mixed" (yum), referring to the cooking method and the harmonious blend of ingredients.
This iconic soup originated in Central Thailand and has been a staple of Thai cuisine for centuries. Traditional Tom Yum features a clear, aromatic broth, but this creamy version (Tom Yum Nam Khon) gained popularity for its richer, more indulgent texture achieved by adding evaporated milk.
Essential Ingredients and Their Roles
The magic of Tom Yum lies in its aromatic herbs and spices. Lemongrass provides a citrusy, lemony fragrance that forms the soup's backbone. Galangal, a cousin to ginger, adds a sharp, peppery heat with floral notes. Kaffir lime leaves contribute an intense citrus aroma that's irreplaceable in authentic Thai cooking.
Thai bird's eye chilies deliver the signature heat, while fish sauce adds the essential umami depth. Fresh shrimp not only provides protein but also creates the flavorful stock base that makes this soup extraordinary.
Tom Yum vs. Tom Kha: Understanding the Difference
While both are beloved Thai soups sharing similar aromatic bases, Tom Yum and Tom Kha have distinct characteristics. Tom Yum is known for its hot and sour profile with a clear or slightly creamy broth, while Tom Kha features coconut milk as its primary base, creating a milder, creamier soup with galangal as the dominant flavor.
Regional Variations
Throughout Thailand, Tom Yum varies by region and personal preference. In Bangkok, you'll find Tom Yum Goong (with shrimp) served both clear and creamy. Northern Thailand often features Tom Yum with river prawns, while southern regions might include local seafood varieties. Some versions include mushrooms, tomatoes, or pineapple for added complexity.
Making It Your Own
This versatile soup adapts beautifully to dietary needs. For a vegetarian version, substitute tofu for shrimp and use soy sauce instead of fish sauce. Chicken, mixed seafood, or even mushrooms alone make excellent protein alternatives. The key is maintaining the balance of flavors while accommodating your preferences.
Serving and Pairing Suggestions
Tom Yum soup shines as both a starter and main course. Traditionally served with jasmine rice, it pairs beautifully with other Thai dishes like Pad Thai, Green Curry, or Thai Basil Stir-fry. For a complete Thai meal, serve alongside fresh spring rolls and mango sticky rice for dessert.
Storage and Reheating Tips
Store leftover Tom Yum in the refrigerator for up to 3 days in an airtight container. The soup can be frozen for up to 3 months, though the texture of mushrooms may change slightly. When reheating, remove shrimp first to prevent overcooking, then add them back during the final minute of heating.
Frequently Asked Questions
Can I make Tom Yum without galangal?
While galangal is traditional, you can substitute fresh ginger with a pinch of black pepper for a similar effect, though the flavor will be slightly different.
How spicy should Tom Yum be?
Authentic Tom Yum has a significant heat level, but adjust chilies to your taste. Start with fewer chilies and add more as needed.
What if I can't find kaffir lime leaves?
Fresh lime zest can substitute in a pinch, though the flavor won't be identical. Dried kaffir lime leaves work better than zest if available.
