Som tam is a Thai green papaya salad built on four flavors — salty, sour, sweet, and spicy — that hit at the same time. This version comes together in 20 minutes with no cooking required, just a mortar and pestle and a handful of fresh ingredients. If you can find green papaya at an Asian grocery store, this is one of the most affordable and satisfying salads you can put on the table.
The technique that matters
The mortar and pestle is not just for show here — it’s what makes the salad work. You’re not trying to pulverize everything into a paste. The goal is to bruise the papaya strands and lightly crush the garlic and chilies so they release their flavor into the dressing rather than sitting on top of it. Use a firm pounding motion, then a stirring motion to work the dressing through. If you only have a large bowl and a rolling pin, you can press and roll the papaya firmly against the bowl — it won’t be quite as well-integrated, but it gets the job done. Don’t skip this step and just toss everything like a regular salad; the texture and flavor absorption will be noticeably flat.
Ingredient notes
- Green papaya: This is unripe papaya — firm, pale, and starchy, not the soft orange fruit. Asian grocery stores usually carry it. If you genuinely can’t find it, green (unripe) mango or kohlrabi shredded on a box grater are the most practical substitutes. Cucumber works in a pinch but goes watery fast, so salt and drain it first.
- Palm sugar: Sold in discs or tubs at Asian grocery stores. Light brown sugar is a straightforward swap at the same quantity — the flavor is slightly less complex but perfectly fine.
- Fish sauce: Gives the dressing its salty, savory backbone. For a vegetarian version, use soy sauce or a mix of soy sauce and a small splash of rice vinegar to approximate the depth. Skip the dried shrimp in that case too.
- Thai bird’s eye chilies: These are genuinely hot. Two chilies makes a medium-spicy salad. Start with one if you’re unsure, taste the dressing, and add more. Serrano peppers work as a substitute — use the same quantity.
- Dry roasted peanuts: Skip the garnish of extra whole peanuts on top — not worth the extra dish. The chopped peanuts mixed in give you all the crunch you need.
Troubleshooting
- The salad is watery by the time you serve it: Green papaya releases moisture once it’s dressed. Assemble the salad no more than 15 minutes before eating. If you’re prepping ahead, keep the shredded papaya separate from the dressing and combine just before serving.
- The dressing tastes flat or too sweet: Palm sugar and fish sauce quantities need to be balanced against the lime juice. Add lime juice a little at a time and taste as you go — lime acidity varies a lot by fruit. A flat dressing almost always needs more lime, not more sugar.
- The papaya strands are too thick and chewy: Shred the papaya as finely as you can — a julienne peeler or the fine side of a box grater works better than a knife for most home cooks. Thicker pieces don’t absorb the dressing well and stay tough even after pounding.
- The salad is too spicy to eat: You can’t un-spice it once it’s mixed, but adding a little more palm sugar and an extra squeeze of lime will soften the heat noticeably. Next time, remove the seeds from the chilies before crushing them.
- The shrimp makes the salad soggy: Pat cooked shrimp completely dry before adding them. Wet shrimp dilute the dressing and make the whole salad limp within minutes.
Som Tam (Thai Green Papaya Salad)
Ingredients
Salad Ingredients
- 2 cups green papaya peeled and shredded
- 1 cup cherry tomatoes halved
- ½ cup green beans cut into 1-inch pieces
- 2 tablespoons dry roasted peanuts chopped
- ½ cup shrimp optional, cooked and peeled
Dressing Ingredients
- 2 tablespoons fish sauce
- 2 tablespoons lime juice freshly squeezed
- 1 tablespoon palm sugar grated
- 2 medium Thai bird chilies crushed
- 1 clove garlic minced
Instructions
- Start by preparing the dressing. In a mortar and pestle, combine the garlic and chilies and pound into a rough paste. Add the fish sauce, lime juice, and palm sugar, stirring until the sugar dissolves, achieving a balanced harmony of spicy and sweet flavors.
- In a large bowl, assemble the salad. Combine the shredded green papaya, cherry tomatoes, green beans, peanuts, and shrimp (if using). Pour the dressing over, and gently toss using your hands or wooden spoons, ensuring the papaya absorbs the flavors fully.
- Taste and adjust seasoning if needed. For a bit more heat, add extra chilies, and for sweetness, add more palm sugar.
Notes
- For added complexity, try adding a dash of tamarind paste to the dressing.
- If you don't have a mortar and pestle, a small food processor can be used, but the texture might be smoother.
Nutrition
Frequently asked questions
Where do I find green papaya?
Asian grocery stores are your best bet — they usually stock it year-round, often pre-shredded in the refrigerated section. Large international supermarkets sometimes carry it too, but standard grocery stores rarely do.
Can I make this without a mortar and pestle?
Yes. Use a large bowl and the back of a heavy spoon or a rolling pin to press and bruise the ingredients. It takes a little more effort but works well enough for a home kitchen.
Can I make this ahead of time?
Keep the dressing and the shredded papaya separate until right before serving. Once combined, the salad softens and releases water quickly, so it’s best eaten within 15 to 20 minutes of assembling.
Is there a way to make this vegetarian?
Swap the fish sauce for soy sauce and leave out the shrimp — the salad still has plenty of flavor from the lime, garlic, and chilies. Add an extra tablespoon of chopped peanuts if you want more substance.
How spicy is this with two bird’s eye chilies?
Two chilies gives a noticeable, medium heat — enough that most adults will feel it, but not overwhelming. Start with one chili if you’re cooking for kids or anyone sensitive to spice, then adjust from there.
What to cook next
- Fresh Vegetable Spring Rolls
- Authentic Japanese Chicken Teriyaki
- Street Food Magic: Authentic Chicken Shawarma
- Quick and Delicious Homemade Chinese Fried Rice
