Som Tum (ส้มตำ) — Thai Green Papaya Salad
Som Tum is Thailand’s bracing green papaya salad, especially beloved in Isan and across street-food stalls nationwide. It balances lime, fish sauce, palm sugar, chile, peanuts, and dried shrimp in a pounded mortar-style dressing.
Printable Recipe Card
Servings: 4 · Total: 25 min · Difficulty: easy
Ingredients (quick list)
- 500 g green papaya, peeled, seeded, and julienned
- 1 l ice water (for crisping the shredded papaya)
- 2 clove garlic
- 4 Thai bird chiles (stems removed; use 2 for milder heat)
- 35 g palm sugar (finely chopped or grated)
- 45 ml fish sauce
- 60 ml fresh lime juice
- 10 ml tamarind concentrate (Thai-style seedless concentrate)
- 20 g dried shrimp
- 60 g yardlong beans, cut into 4 cm lengths
- 8 cherry tomatoes (halved)
- 45 g roasted unsalted peanuts (lightly crushed)
+ 2 more in the full ingredients section below.
Steps (summary)
- Place the julienned green papaya in the ice water for 10 minutes to firm it and encourage a crisp, snappy texture. Drain it ver…
- In a large clay mortar, pound the garlic and Thai bird chiles with a wooden pestle until they are bruised and aromatic but not…
- Add the fish sauce, lime juice, and tamarind concentrate to the mortar, then stir and press with the pestle until the palm suga…
- Add the dried shrimp and yardlong beans to the mortar, then pound gently 6 to 8 times to bruise the beans and soften the shrimp…
- Add the halved cherry tomatoes and press them lightly with the pestle so they release some juice into the dressing. Use a large…
- Add the drained green papaya and 30 g of the crushed peanuts to the mortar. Pound and toss together for 1 to 2 minutes, using t…
+ 1 more steps in the full instructions section below.
Cultural Background
Som Tum reflects the pounded-salad traditions associated with Isan and Laos, now deeply woven into Thai everyday eating. It is a street-food staple, a home-cooking favorite, and a natural companion to sticky rice and grilled meats.
Equipment
💡 Tips
- Use a firm, fully green papaya; orange ripe papaya is too soft and sweet for this salad.
- A clay mortar and wooden pestle bruise the ingredients without pulverizing them, which gives Som Tum its proper texture.
- Serve immediately after pounding because the salted dressing will draw moisture from the papaya and soften it quickly.
⚠️ Common Mistakes
❌ Using ripe orange papaya.
✅ Fix: Choose a firm green papaya with pale flesh so the salad stays crisp and absorbs the dressing properly.
❌ Pounding too aggressively after adding the papaya.
✅ Fix: Use a lift-and-bruise motion with a spoon and pestle so the strands are seasoned but not crushed.
❌ Letting the salad sit too long before serving.
✅ Fix: Serve it immediately because fish sauce and lime draw water from the papaya and make the texture limp.
🧊 How to Store
Som Tum is best eaten within 30 minutes of pounding. Refrigerate leftovers in an airtight container for up to 24 hours; do not reheat, and refresh with 10 ml lime juice before serving if the papaya has softened.
📅 Make Ahead
Shred the green papaya up to 1 day ahead and refrigerate it in cold water, then drain and dry before use. Measure the dressing ingredients ahead, but pound and combine the salad only just before serving.
🍽️ Pairs Well With
- Thai sticky rice
- grilled chicken
- cabbage leaves
- cucumber slices
- Thai omelet.
Regional Variations
- Som Tum Thai includes peanuts, dried shrimp, lime, fish sauce, and palm sugar for a balanced central Thai style.
- Som Tum Lao or Isan-style versions often use fermented fish sauce and can be more pungent, saltier, and hotter.
- Som Tum Pu may include salted crab, adding a deeper briny flavor and a stronger aroma.
Ingredients
- 500 ggreen papaya, peeled, seeded, and julienned
- 1 lice water (for crisping the shredded papaya)
- 2 clovegarlic
- 4Thai bird chiles (stems removed; use 2 for milder heat)
- 35 gpalm sugar (finely chopped or grated)
- 45 mlfish sauce
- 60 mlfresh lime juice
- 10 mltamarind concentrate (Thai-style seedless concentrate)
- 20 gdried shrimp
- 60 gyardlong beans, cut into 4 cm lengths
- 8cherry tomatoes (halved)
- 45 groasted unsalted peanuts (lightly crushed)
- 8green cabbage leaves
- 1cucumber (sliced into 5 mm rounds)
🔄 Substitutions
- green papaya→ green mango
- dried shrimp→ additional roasted peanuts, 20 g
- yardlong beans→ green beans, 60 g
Instructions
- 1
Place the julienned green papaya in the ice water for 10 minutes to firm it and encourage a crisp, snappy texture. Drain it very well in a colander, then pat it dry with a clean kitchen towel so the dressing clings instead of becoming diluted.
- 2
In a large clay mortar, pound the garlic and Thai bird chiles with a wooden pestle until they are bruised and aromatic but not completely pureed. Add the palm sugar and pound again until the sugar breaks down into a coarse paste.
- 3
Add the fish sauce, lime juice, and tamarind concentrate to the mortar, then stir and press with the pestle until the palm sugar is fully dissolved. Taste the liquid and check for the classic Thai balance of salty, sour, sweet, and hot, adjusting only within the listed measured ingredients if you have reserved any.
- 4
Add the dried shrimp and yardlong beans to the mortar, then pound gently 6 to 8 times to bruise the beans and soften the shrimp. The goal is to release flavor and texture, not to crush the vegetables into a mash.
- 5
Add the halved cherry tomatoes and press them lightly with the pestle so they release some juice into the dressing. Use a large spoon in your other hand to lift and turn the mixture as you pound, keeping the dressing moving through the ingredients.
- 6
Add the drained green papaya and 30 g of the crushed peanuts to the mortar. Pound and toss together for 1 to 2 minutes, using the spoon to fold the strands upward while the pestle lightly bruises them.
- 7
Transfer the Som Tum to a shallow serving dish and spoon any dressing from the mortar over the top. Scatter the remaining 15 g peanuts over the salad and serve immediately with cabbage leaves and cucumber slices.
🪪 Recipe Passport
Cultural Background
Som Tum reflects the pounded-salad traditions associated with Isan and Laos, now deeply woven into Thai everyday eating. It is a street-food staple, a home-cooking favorite, and a natural companion to sticky rice and grilled meats.
Regional Variations
Researched from multiple sources and validated by the Zaffaron editorial team. Every recipe is tested for accuracy, measurements, and cultural authenticity.
📚 Sources & Cultural References
- David Thompson — Thai Food — (2002)
- Kasma Loha-unchit — It Rains Fishes: Legends, Traditions and the Joys of Thai Cooking — (1995)
Sources cited by the Zaffaron editorial team during recipe research. Cultural and culinary references supporting authenticity claims.
Nutrition per serving
Pairs well with
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