Som Tam (ส้มตำ)

Som Tam, the green papaya salad of Isan, is one of the most consumed dishes in Thailand and one of the world's great examples of balanced flavour. A combination of sour (lime and tamarind), salty (fish sauce, fermented shrimp paste), sweet (palm sugar), and fiery (bird's eye chillies) is pounded together in a clay mortar with crunchy unripe papaya. The Isan version — Som Tam Pla Ra — uses fermented freshwater fish (pla ra) for a funky, pungent depth that sets it apart from the milder Bangkok style. The papaya shreds are bruised, not pulverised, absorbing the dressing while retaining crunch. It is eaten at all hours as a snack, a side dish, and a meal.

Serves: 2

Ingredients

• 300 g (10 oz) green (unripe) papaya, peeled and shredded into thin matchsticks
• 2–5 bird's eye chillies (to taste)
• 3 garlic cloves
• 2 tbsp dried shrimp
• 4 snake beans (long beans), cut into 3 cm (1-inch) lengths
• 6 cherry tomatoes, halved
• 2 tbsp fish sauce
• 1 tbsp fermented fish sauce (pla ra) — optional but authentic
• 1.5 tbsp palm sugar or brown sugar
• 2 tbsp fresh lime juice
• 1 tbsp tamarind water
• 30 g (1 oz) roasted peanuts, lightly crushed

Instructions

1. In a large clay mortar, pound chillies and garlic to a rough paste, about 1 minute — leave it somewhat chunky.
2. Add dried shrimp and pound briefly.
3. Add snake beans and pound to bruise them lightly.
4. Add fish sauce, pla ra (if using), palm sugar, lime juice, and tamarind water. Stir with the pestle to dissolve the sugar.
5. Add papaya in two batches. Use the pestle to bruise the papaya while tossing with a spoon — a technique that infuses dressing into the shreds without turning them to mush. This takes about 2 minutes of alternating pounding and tossing.
6. Add cherry tomatoes and lightly crush them to release their juice. Taste and adjust: more lime for sour, fish sauce for salt, sugar for sweet, chillies for heat.
7. Transfer to a plate, scatter with roasted peanuts, and serve immediately with sticky rice and grilled meats.

Cook's Notes: The clay mortar is not a prop — its porous surface grips the food and creates the right bruising action. Pla ra is available frozen at Thai grocery stores; start with 1 teaspoon and adjust. Green papaya can be found at Southeast Asian grocery stores or shredded using a mandoline.