Name: Thai Green Papaya Salad (Som Tam)
Prep time: 20 min
Total time: 20 min
Ingredients: 1 small green papaya (peeled and shredded (about 1 lb; yields about 2 cups)); 1 large carrot (peeled and shredded (about 1 cup)); 1 cup green beans (cut into 2-inch pieces (sub: long beans if available)); 3 cloves garlic (roughly chopped); 2 Thai chilies (roughly chopped (sub: 1 serrano chili, seeded for less heat)); 3 tablespoons vegetarian fish sauce (Ocean's Halo; sub: low-sodium soy sauce or tamari); 1 medium lime (juiced (about 2 tbsp)); 2 tablespoons coconut sugar; ½ pint cherry tomatoes (halved (about 1 cup)); ¼ cup roasted peanuts (roughly chopped, plus more to serve)

My vegetarian som tam is a Thai green papaya salad made the traditional way, with garlic and chilies pounded in a mortar, green beans bruised just enough to absorb the dressing, and shredded papaya tossed through a salty-sour-sweet sauce with roasted peanuts. I have it on the table in 20 minutes, the only cooking is a 90-second blanch for the beans, and it pairs with any Thai dish you might make.

Vegan Thai green papaya salad served in a stone mortar with shredded papaya, carrots, green beans, tomatoes, peanuts, and lime.

Why the mortar is the recipe (and how to fake it if you don’t have one)

Sadly, you can’t just toss som tam in a bowl. The pounding is a key technique since it bruises the vegetables just enough to open them up to the dressing without breaking them down. That’s why som tam at a Thai restaurant usually tastes different from what we make at home.

I learned the fundamentals when I took a cooking class in Koh Samui where I also learned my Thai curry recipes. The instructor taught us to use fermented garlic water in the dressing, which is a restaurant and street vendor technique for mellower, more complex garlic flavor. But at home, fresh garlic pounded directly in the mortar created a sharper and more immediate, but completely authentic and honestly delicious version. So that’s the version I’m sharing here.

If you don’t have a mortar and pestle, a zip-top bag and a rolling pin will get you there. Smash the garlic and chili in a small bowl first, then combine everything in the bag and press firmly with the rolling pin. I’ve tested it and it works. You lose some of the texture nuance, but the flavor is the same. That said, if you’re building out a Thai cooking habit, a large clay or granite mortar is a worthwhile investment. I use this 2-cup granite mortar and it handles som tam, curry pastes, and spice grinding.

Key ingredients and why they matter

Ingredients for vegan Thai green papaya salad.

Full ingredient list and detailed instructions in the recipe card.

Green papaya has to be completely unripe, firm with white flesh and no orange or yellow anywhere. Ripe papaya turns to mush the second the pestle touches it. Most Asian grocery stores carry it, and some larger supermarkets do too. If you genuinely can’t find it, green mango is the most authentic substitute and gives a similar firm, tart bite. Shred it on the large holes of a box grater or with a julienne peeler, and skip the top inch near the stem where the flesh goes bitter.
Green beans need a quick blanch, 90 seconds in boiling salted water and then straight into ice water. Raw, they’re too fibrous to bruise properly in the mortar. The blanch gives them the right snap so they crack open and take on the dressing without going mushy. Long beans are more traditional if your Asian grocery has them.
Garlic and Thai chilies get pounded together into a coarse paste, not smooth, you want visible pieces. Two Thai chilies makes this genuinely spicy. Start with one if you’re cooking for mixed heat tolerance and add more at the table.
Vegetarian fish sauce gives the salty backbone (I like Ocean’s Halo for this one). Regular fish sauce isn’t vegetarian, so check labels. Low-sodium soy sauce works as a sub, though the flavor profile shifts.
Fresh lime juice, about 1 medium lime, brings the sour. Between the lime and the fish sauce you’re building the dressing right in the mortar, so taste it before the vegetables go in.
Coconut sugar balances the salty and sour. It’s easier to find than palm sugar and the flavor difference is negligible here.
Roasted peanuts go in during the toss and on top as garnish, for crunch and a little richness that rounds out the sharp flavors.
Shredded carrot and cherry tomatoes bring color and sweetness. Halve the tomatoes so they eat well, and mixed colors photograph beautifully.

Shruthi’s top tips

How to make som tam taste like the restaurant version

Taste the dressing before the vegetables go in. The balance of salty, sour, sweet, and spicy is the entire dish, so get it right in the mortar first. More fish sauce for salt, more lime for brightness, more coconut sugar if it’s too sharp. Once the papaya is in, adjusting is harder.
Drain and dry the papaya thoroughly. I tested this with wet papaya straight from the soaking water and the dressing came out visibly diluted. Pat it dry before it goes into the mortar.
Pound lightly. About 6 to 8 light pounds while turning and folding with a spoon is enough, and the papaya should still have crunch when you’re done.
Serve it immediately. Som tam starts releasing moisture within 20 to 30 minutes and goes limp fast, so eat it the moment it’s dressed. This isn’t a make-ahead dish.
Start with fewer chilies if you’re unsure. Two Thai chilies is properly spicy; one is still flavorful with a manageable kick, and you can always add more.

How to make Thai green papaya salad

Peel and shred the green papaya and carrot, then soak the papaya in cold water while you prepare the remaining ingredients. Blanch the green beans briefly, then transfer them to ice water and drain well.
Add the garlic and Thai chilies to a large mortar and pestle and pound into a coarse paste.

Shredded green papaya and carrot prepared for Thai green papaya salad.

Garlic and Thai chilies pounded into a coarse paste in a mortar.

Add the green beans and lightly bruise them with the pestle. Stir in the vegetarian fish sauce, lime juice, and coconut sugar until combined.
Drain and dry the papaya, then add it to the mortar along with the shredded carrot, tomatoes, and peanuts.
Use the pestle and a spoon to gently bruise and mix the vegetables until coated in the dressing. Taste, adjust the seasoning if needed, then serve immediately with extra peanuts on top.

Green beans added to the mortar with the garlic and chili mixture.

Shredded papaya, carrot, tomatoes, and peanuts added to the mortar.

Thai green papaya salad being mixed in a mortar until coated with dressing.

How to serve som tam

Alongside my Thai green curry or vegetarian panang curry for a full Thai spread.
With tofu satay with peanut sauce as a starter.
With jasmine rice as a light lunch on its own.
Next to crispy peanut tofu bowls for an accessible weeknight Thai dinner.

Variations

Green mango stands in for papaya as the most authentic substitute, with similar texture and tartness.
Long beans work in place of green beans if your Asian grocery carries them, blanched the same way.
For more heat, add a third Thai chili or leave the seeds in.

Thai green papaya salad with tomatoes, peanuts, and lime wedges served in a black bowl.

Storage and reheating

Make and serve immediately. Som tam does not store. It goes limp within 20 to 30 minutes of dressing.