Thailand's most eaten dish: green papaya bruised in a clay mortar with palm sugar, fish sauce, lime and chilli. The pounding is bruising, not grinding.
About Som Tum (Green Papaya Salad)
Thailand's most eaten dish and the defining food of Isaan cuisine: julienned unripe papaya bruised in a clay mortar with palm sugar, fish sauce, lime juice, chilli, dried shrimp and cherry tomatoes; the pounding is not grinding but bruising, to open the papaya's fibres; som tum Thai uses peanuts; som tum pla ra (with fermented fish sauce) is the original and most pungent version.
Isaan's Salad
Som tum is the fiery green papaya salad of Thailand's northeastern Isaan region, now eaten across the whole country. Shredded unripe papaya is pounded in a clay mortar with palm sugar, fish sauce, lime, chilli, dried shrimp and tomato. The result is hot, sour, salty and sweet all at once, crunchy and bracing.
“Som tum is the fiery green papaya salad of Thailand's northeastern Isaan region, now eaten across the whole country.”
Pound, Don't Grind
The technique is to bruise rather than grind. The papaya and other ingredients are pounded in a tall clay mortar just enough to open the fibres and let them soak up the dressing, without turning the salad to mush. A clay mortar is used precisely because it bruises gently, where a heavy stone mortar would crush. The rhythmic pounding is part of the experience.
Thai and Pla Ra
There are two main camps. Som tum Thai, sweeter and milder with peanuts and dried shrimp, is the version most familiar to visitors; som tum pla ra, dressed with fermented fish sauce, is the more pungent and complex original of Isaan. The fermented version is worth trying once the standard one is familiar.
Made to Order
Som tum is pounded fresh to order, the cook adjusting the chilli to each eater's tolerance, and it is best eaten at once, before the lime breaks the papaya down further. It is typically eaten with sticky rice and grilled chicken. Cheap, fierce and freshly made, it is among the most-eaten dishes in the country.
What to Expect
At a Bangkok som tum stall the cook asks the diner's heat preference and adds the chillies accordingly. The pounding rhythm is audible across the street. The salad arrives immediately after, the papaya still slightly resistant under the fork.
Why Try It
Som tum is Isaan cooking's most internationally accessible dish, and the fermented fish sauce version, pla ra, is worth trying after familiarity with the standard version.
Insider Tips
- Specify a chilli preference (phet nit noi means slightly spicy) when ordering.
- The som tum pla ra is the authentic Isaan version, more pungent but more complex.
- Eat immediately, the texture changes as the lime continues to break down the papaya.
