What Is Tom Yum Goong?
Tom Yum Goong — ต้มยำกุ้ง — is Thailand’s most iconic hot and sour shrimp soup, built on a clear broth of lemongrass, galangal, kaffir lime leaves, fresh chilies, fish sauce, and lime juice. The shrimp go in last. The broth is the whole point. It is sour first, hot second, and deeply fragrant throughout.
Note From Susie
Sawasdee Kha, and Hello.
I was young when I first had this. Young enough that the full soup was too much, the chilies, the shrimp, the complexity of everything happening at once in the bowl. So, I sipped the broth. That was what I could do. And the broth was enough, because even then the sourness was there.
I have always liked things that were sour. The lime in the Tom Yum Goong found me before anything else did. Sharp and bright and clean against the heat of the chilies, it was the thing I went back to the bowl for, even when I was setting the shrimp aside.
My mother made this in Thailand, and she made it in the United States. Two kitchens, different stoves, different distances from the market where the lemongrass was bought. The soup was the same. The broth smelled the same, lemongrass and galangal and kaffir lime leaves, a smell that is specific and not like anything else in any cuisine I have ever encountered. You know it the moment it hits the air.
As I got older I came to understand the whole bowl. The shrimp, the mushrooms, the way the chilies built slowly under the sourness. It became part of family meals, a bowl at the center of the table, steam rising, everyone reaching.
I still go for the broth first. Some things do not change.
What’s In This Page
“My mother never measured anything. This is the truest thing I know about how she cooked.”
— Her Hands His EyesWhat Is Tom Yum Goong?
Tom Yum Goong — ต้มยำกุ้ง — is Thailand’s most recognized soup and one of the most distinctive dishes in Southeast Asian cooking. Tom means boiled. Yum means mixed or tossed — the same word used for Thai salads built on lime and fish sauce. Goong means shrimp. Together: a hot and sour shrimp soup, built on a clear or slightly cloudy broth of lemongrass, galangal, kaffir lime leaves, fresh Thai chilies, fish sauce, and lime juice, with shrimp added at the last moment and cooked gently in the hot broth.
What makes Tom Yum Goong immediately recognizable — even before you taste it — is the smell. Lemongrass and galangal and kaffir lime leaves together produce an aroma that is specific to this soup and to Thai cooking in a way that is not replicated anywhere else. The sourness of the lime juice is the backbone. The heat of the chilies is the building pressure underneath. The fish sauce is the salt that holds it all together without announcing itself.
There are two main versions: Tom Yum Nam Sai, the clear broth version, and Tom Yum Nam Khon, made creamy with evaporated milk or coconut milk. This is the clear broth version — the one my mother made. The one where the broth does all the work and nothing obscures what it is.
According to the Oxford Companion to Food, Tom Yum is considered a national dish of Thailand, recognized internationally as one of the defining flavors of Thai cuisine. It has been listed among the world’s most popular soups for decades.
The broth is the whole point. It always has been.
What You’ll Need
Lemongrass — the foundation of the broth. Two to three stalks, the lower white portion only, bruised with the back of a knife and cut into two-inch pieces. Bruising releases the oils. Cutting into pieces allows the flavor to steep into the broth. The lemongrass is not meant to be eaten — it goes into the broth to do its work and stays in the bowl as a marker, not a component of the eating.
Galangal — sliced into thin rounds. Galangal is not ginger and cannot be substituted for it without changing the soup fundamentally. It has a woodier, more resinous, pine-like sharpness that is part of what makes Tom Yum Goong smell the way it does. Fresh galangal is available at Asian grocery stores. Frozen galangal works well when fresh is not available.
Kaffir lime leaves — four to six, torn in half to release their oils before going into the broth. The fragrance of kaffir lime leaves is floral and citrus-forward in a way that lime juice alone cannot produce. They are the aromatic ceiling of the soup — the top note that lifts everything. Fresh or frozen, both correct. Dried kaffir lime leaves are significantly weaker and should be used in larger quantities if that is all that is available.
Fresh Thai bird chilies — three to five, bruised and left whole or roughly sliced. The number determines the heat. Three is present but manageable. Five is genuinely hot. My mother made it with enough heat that it arrived on the second sip. Start with three and taste before adding more.
Shrimp — fresh, shell-on if possible. The shells go into the broth first to build depth before the shrimp themselves are added. Peel the shrimp, devein them, and set them aside. The shells go into the broth with the aromatics. The shrimp go in at the very end — two minutes before serving, no more. Overcooked shrimp in Tom Yum Goong is the single most common mistake.
Fish sauce — the salt of the soup. One and a half tablespoons to start. Lime juice — fresh only, squeezed just before it goes in. The lime juice goes in last, off the heat. Heat dulls its brightness. It should be sharp and present in every sip.
Nam Prik Pao — Thai roasted chili paste, one tablespoon. This is what gives the broth its depth and its slightly smoky quality beneath the sour and hot. The recipe at /nam-prik-pao-recipe/ is the one to use. Store-bought works when there is no time to make it.
Mushrooms — straw mushrooms are traditional. Oyster mushrooms or button mushrooms work well. They go into the broth in the final minutes of cooking, just long enough to soften.
VISUAL WALK THROUGH
Step 1. Build the broth with the aromatics and shrimp shells first.
Water or a light chicken stock into the pot. Bring to a boil. Add the bruised lemongrass, sliced galangal, torn kaffir lime leaves, bruised chilies, and the shrimp shells. The moment these hit the simmering liquid the smell changes, the kitchen fills with lemongrass and galangal and kaffir lime in a way that is immediate and specific. Simmer for fifteen minutes. This is where the broth is built. Everything that follows is finishing.
Step 2. Strain out the shrimp shells. Leave the aromatics.
After fifteen minutes, remove the shrimp shells, scoop them out with a strainer or spoon. The lemongrass, galangal, kaffir lime leaves, and chilies stay in the pot. They will continue to steep in the broth through the rest of the cooking. They are not eaten but they are not removed, they belong in the bowl when it is served, as markers of what the broth was built from.
★ Step 3. Add the Nam Prik Pao and fish sauce. This is What Makes the Difference.
The Nam Prik Pao goes in now, one tablespoon, stirred until fully dissolved into the broth. The broth will darken immediately, shifting from pale gold to a deeper amber. This is the step that separates a Tom Yum Goong that tastes like the real thing from one that tastes like a reasonable attempt. The roasted chili paste adds smokiness and depth that the raw aromatics alone cannot produce. Then the fish sauce. Taste. The broth should be savory and complex before the shrimp and mushrooms go in.
Step 4. Add the mushrooms. Then the shrimp — last, briefly.
Mushrooms go in and simmer for two minutes until just softened. Then the shrimp, peeled, deveined, added to the simmering broth and watched. The moment they turn pink and curl, two minutes, no more, the heat goes off. Shrimp in a hot broth continue to cook from residual heat after the flame is gone. Take the pot off the heat the moment the shrimp look done. They will finish in the bowl.
★ Step 5. Add the lime juice off the heat. This is the second thing that makes the difference.
The heat is off. The lime juice goes in now, squeezed fresh, directly into the pot. Stir once. Taste. The sourness should arrive immediately and clearly. If it is not sour enough, add more lime. If it is too sour, a small amount of fish sauce will round it. The lime juice must go in off the heat, heat dulls its brightness and flattens the sourness that is the backbone of this soup. This is the step that keeps Tom Yum Goong tasting sharp and alive rather than cooked and muted. Ladle immediately into bowls.
Tom Yum Goong (Hot and Sour Shrimp Soup)
Ingredients
- 1 pound Shrimp shell on
- 3 stalks Lemongrass cut into 1-inch pieces and smashed
- 6 leaves Kaffir Lime Leaves
- 3 slices Galangal about ¼ inch thick
- 3 tbsp Fish Sauce
- 1/4 cup Lime Juice: ¼ cup
- 5 Thai Bird Chilies smashed (adjust to taste)
- 1 cup Mushrooms sliced (straw or button mushrooms)
- 1 cup Cherry Tomatoes halved
- 4 cups Chicken Broth or Water
- 1/4 cup Cilantro: ¼ cup roughly chopped for garnish
- 2 Green Onions chopped for garnish
- 1 tbsp Optional: chili paste Nam Prik Pao for added spice and smokiness
Instructions
- Prepare the Shrimp: Peel and devein the shrimp, keeping the tails intact. Reserve the shells.
- Make the Broth: In a large pot, add the shrimp shells and 4 cups of chicken broth or water. Bring to a boil, then simmer for about 10 minutes to extract flavor from the shells. Strain the broth and discard the shells.
- Infuse the Broth:Return the clear broth to the pot. Add the smashed lemongrass, kaffir lime leaves, galangal, and Thai bird chilies to the broth. Bring the mixture to a boil and then simmer for 5 minutes to infuse the flavors.
- Add the Mushrooms and Tomatoes: Add the mushrooms and cherry tomatoes to the pot. Simmer for about 3 minutes.
- Cook the Shrimp: Add the shrimp to the pot and cook for about 3-5 minutes, or until the shrimp are pink and cooked through.
- Season the Soup: Remove the pot from the heat. Stir in the fish sauce and lime juice. Adjust the seasoning to taste. If using, stir in the chili paste.
- Garnish and Serve:Garnish with chopped cilantro and green onions. Serve hot.
Notes
Nutrition
Let’s Get This Right
Why does my Tom Yum Goong taste flat and not sour enough?
The lime juice went in too early, or not enough was used, or it was bottled rather than fresh. Lime juice added while the soup is still on the heat loses its brightness — the sharp sourness that defines Tom Yum Goong cooks off and becomes merely acidic. Take the pot off the heat completely before the lime juice goes in. Use fresh lime only. Squeeze it just before it goes into the pot. Taste after adding and adjust — the sourness should be immediate and clear.
Why are my shrimp rubbery in Tom Yum Goong?
They cooked too long. Shrimp in a hot broth need two minutes at most. They continue to cook from the residual heat of the broth after the pot is taken off the flame, and they continue to cook further from the heat of the bowl after ladling. Take the pot off the heat the moment the shrimp are just pink through — do not wait until they look completely done. They will finish in the bowl. Rubbery shrimp cannot be corrected after the fact.
Can I make Tom Yum Goong without Nam Prik Pao?
You can, but the soup will taste significantly thinner and less complex. Nam Prik Pao provides the smoky depth and amber color that makes Tom Yum Goong taste the way it does in Thailand rather than like an approximation of it. If you do not have it, the soup will still be good — the aromatics and lime and fish sauce will carry the flavor — but it will not be quite the real thing. Make the paste from /nam-prik-pao-recipe/ or use a store-bought version. It is the one ingredient that cannot be omitted without consequence.
What is the difference between Tom Yum Nam Sai and Tom Yum Nam Khon?
Tom Yum Nam Sai is the clear broth version — the one made here. The broth is transparent, amber-colored, and built entirely on the aromatics, fish sauce, lime, and Nam Prik Pao. Tom Yum Nam Khon is made creamy with the addition of evaporated milk or coconut milk, which softens the sourness and adds richness. Both are correct versions of Tom Yum Goong. The clear version is the more traditional and the more commonly made at home. The creamy version is richer and milder.
Can I use frozen shrimp for Tom Yum Goong?
Yes. Thaw them completely and pat dry before they go into the broth. Shrimp that go into the soup with excess water will dilute the broth slightly. Shell-on shrimp are preferable — the shells go into the broth first to build depth. If you are using pre-peeled frozen shrimp, add a small amount of extra fish sauce to compensate for the depth the shells would have provided.
SECTION 11 — FLAVOR PROFILE
The smell reaches you before the bowl does. Lemongrass and galangal and kaffir lime leaves — a specific, layered fragrance that does not exist anywhere else. Sharp at the top from the kaffir lime. Warm and woody underneath from the galangal. The lemongrass running through all of it like a bright thread.
Then the bowl arrives and the steam carries it directly. The broth is amber — the Nam Prik Pao giving it color and depth, the chilies floating at the surface, the lemongrass pieces visible and fragrant.
The first sip is sour. That is the order — always. The lime arrives first and it is sharp and clean and exactly what the sourness should be: bright rather than harsh, present rather than aggressive. Then the heat begins to build from the chilies — not immediately, a few seconds behind the sourness, climbing slowly. Then the fish sauce underneath everything, the salt that holds the whole bowl together without being identifiable as salt.
The shrimp are tender if they have not been overcooked. The mushrooms yield gently. The aromatics in the bowl — the lemongrass, the galangal — are moved aside, their work done.
I sipped the broth first when I was young because the sourness found me. I still sip it first. Some things do not change, and some things do not need to.
SECTION 12 — SUSIE’S KITCHEN NOTES
My mother used shell-on shrimp every time. The shells went into the broth with the aromatics and simmered for the full fifteen minutes — they gave the broth a depth and a slight sweetness that peeled shrimp alone cannot produce. If you are buying shrimp for this recipe, buy them shell-on if you have the option. Peel them yourself. Put the shells in the broth. This is fifteen seconds of extra work and it makes a measurable difference in what the broth becomes.
The galangal and lemongrass should be bruised before they go into the pot. Bruising — a firm press with the flat of a knife or a whack with a heavy object — breaks the cell walls and releases the oils more completely than cutting alone. A piece of lemongrass that has been bruised will contribute more to the broth than one that has only been cut. The same is true of the chilies. Bruise everything. It takes five seconds and it matters.
Kaffir lime leaves that have been frozen work almost as well as fresh. Buy a bag when you find them and keep them in the freezer — they defrost in seconds and can go directly into the broth from frozen. Dried kaffir lime leaves are available but significantly weaker — if dried is all you have, double the quantity and understand that the fragrance will be flatter.
The soup should be served immediately after the lime juice goes in. Tom Yum Goong is not a soup that benefits from sitting — the lime juice brightness fades, the shrimp continue to cook in the hot broth, and the whole balance shifts away from what it should be. Have the bowls warm and ready. Ladle the moment the lime is in. Eat it while the steam is rising.
In Thailand the soup was made and eaten. In Maryland it was made and eaten. The table was different. The soup was not.
SECTION 13 — PAIRING SUGGESTIONS
Tom Yum Goong belongs at the center of a Thai family table, a bowl that everyone reaches into, served alongside rice and other dishes rather than as a solo course. Steamed jasmine rice is the natural companion, the clean grains absorbing the sour broth when spooned together. For a fuller table, Thai ginger chicken, brings a savory warmth that sits alongside the sourness of the Tom Yum without competing, two different registers, both built on aromatics, both made for sharing. The chicken larb, is the brighter, sharper dish alongside a bowl of Tom Yum Goong, lime against lime, herb against herb, the two together making a meal that covers the full range of Thai flavor. For those who want a second soup at the table, the Tom Kha Gai is its natural counterpart: coconut and lemongrass, creamy where Tom Yum is clear, rich where Tom Yum is sharp. My mother put this soup on the table in Thailand and in Maryland. It was always part of something larger. It was never meant to be eaten alone
FAQ
What is Tom Yum Goong?
Tom Yum Goong — ต้มยำกุ้ง — is Thailand’s most iconic hot and sour shrimp soup. It is built on a clear broth of lemongrass, galangal, kaffir lime leaves, fresh Thai chilies, fish sauce, lime juice, and Nam Prik Pao roasted chili paste, with shrimp and mushrooms added at the end. The broth is sour first, hot second, and deeply fragrant from the aromatics. It is considered a national dish of Thailand and one of the most recognized soups in the world.
How do you make Tom Yum Goong step by step?
Simmer water or light stock with lemongrass, galangal, kaffir lime leaves, Thai chilies, and shrimp shells for fifteen minutes. Remove the shells. Stir in Nam Prik Pao and fish sauce. Add mushrooms and simmer two minutes. Add shrimp and cook just until pink — two minutes maximum. Take the pot off the heat. Add fresh lime juice, stir once, taste, and adjust. Ladle immediately into bowls. The lime juice must go in off the heat to preserve its brightness.
What is the difference between Tom Yum Goong and Tom Kha Gai?
Tom Yum Goong is a clear hot and sour shrimp soup — bright, sharp, sour-forward, built on lime juice and aromatics with no dairy or coconut milk. Tom Kha Gai is a coconut milk chicken soup — creamy, rich, with the same lemongrass and galangal aromatics but a completely different base. Tom Yum is the sharper, more acidic soup. Tom Kha is the richer, more mellow one. Both use lemongrass, galangal, and kaffir lime leaves as the aromatic foundation.
Why is lime juice added at the end of Tom Yum Goong?
Lime juice added to a hot soup while still on the heat loses its brightness — the sharp, clean sourness that defines Tom Yum Goong flattens and becomes merely acidic rather than vivid. Adding the lime juice off the heat, just before serving, preserves the sharpness and keeps the soup tasting alive. This is the single most important technique in making Tom Yum Goong correctly. The soup should be taken completely off the heat before the lime goes in.
What does Tom Yum Goong taste like?
Tom Yum Goong tastes sour first — the lime juice arrives immediately and clearly on the palate. Then the heat from the Thai bird chilies builds slowly behind it. Then the savory depth of the fish sauce and Nam Prik Pao underneath everything. The aromatics — lemongrass, galangal, kaffir lime — are present in the fragrance more than the direct flavor. It is a soup that is bright, hot, sour, and deeply fragrant, with tender shrimp and mushrooms in a clear amber broth.
Can I make Tom Yum Goong without galangal?
Ginger is the most common substitute, but the soup will taste different — ginger has a warmer, more immediately spicy quality without the woody, resinous sharpness of galangal. The soup will still be good, but it will not have the specific fragrance that makes Tom Yum Goong immediately recognizable. Frozen galangal is available at most Asian grocery stores and is a better option than fresh galangal at the peak of its life — if you can find it frozen, use it.
Is Tom Yum Goong healthy?
Tom Yum Goong is a low-calorie, low-fat soup built on a clear broth, lean shrimp, and fresh aromatics. It contains no dairy, no coconut milk, and no starch thickener. The fish sauce contributes sodium, which is the primary nutritional consideration. The lemongrass, galangal, kaffir lime leaves, and fresh chilies are all whole ingredients with no processing. It is widely considered one of the more nutritionally clean soups in Thai cuisine.
