Roasted Green Chili Dip (Nam Prik Num)

Ingredients

Equipment Needed

• •Heavy granite mortar and pestle (krok hin)
• •Charcoal grill, gas burner, or open flame source
• •Long-handled tongs for turning

Instructions

1. 1

   Roast over charcoal

   Set the prik num, whole garlic head, unpeeled shallots, and tomatoes directly on a charcoal grill or over an open gas flame. The chilies go on first because they need the most time. Roast them, turning with tongs, until every surface is blistered and blackened. The skin should be charred and papery, the flesh underneath soft and collapsed. This takes 10 to 15 minutes depending on your heat. You want genuine char, not a light toast. The garlic and shallots roast in their skins until they're completely soft when squeezed, about 15 minutes. The skins protect the flesh inside while the sugars caramelize. The tomatoes need only 5 to 8 minutes, just until the skin splits and they soften through. The kitchen (or your balcony, or your backyard) should smell like a Chiang Mai street at dusk: smoky, green, sweet.

   Charcoal is traditional and gives the deepest smokiness. A gas flame works if that's what you have. A broiler is your last resort, set it as high as it goes and get the chilies as close as possible. What you cannot do is skip the charring. The smoke flavor IS the dish.
2. 2

   Peel the charred skins

   Let everything cool just enough to handle. Peel the blackened skins off the chilies. Some charred bits will cling to the flesh. Leave them. That's flavor, not debris. Split the chilies and scrape out the seeds if you want less heat, but traditional nam prik num keeps most of them in. Squeeze the garlic cloves out of their skins. They should be golden, soft, and sweet-smelling, completely different from raw garlic. Peel the shallots, discarding the charred outer layers but keeping any caramelized flesh. Peel the tomatoes (the skins will slide right off after roasting).

   Don't rinse the roasted chilies under water to remove the skins. You'll wash away the smoky oils that you just spent fifteen minutes building. Peel them dry. Your fingers will get stained. That's fine.
3. 3

   Pound the kreung tam

   Start with the roasted garlic and shallots in the granite mortar. Pound them to a rough paste. Not smooth. You want texture, little pieces that give the dip body. Add the roasted chilies a few at a time and pound, incorporating them into the garlic-shallot base. The chilies should break down into a chunky, fibrous mass with visible green and charred flecks. Now add the roasted tomatoes and pound just enough to crush them in. They add moisture and a slight acidity that balances the smoke. The final texture should be rough, uneven, and full of character. This isn't a puree. It's a pounded relish. Every bite should have a slightly different balance of chili, garlic, and char.

   The kreung tam is everything. A blender turns this into baby food. The mortar gives you control over texture. Each strike of the pestle breaks cells differently, releasing oils and moisture at your pace. That's the difference between nam prik num and green paste from a jar. Krok ก่อน, krok ก่อน.
4. 4

   Season and serve

   Add the fish sauce (nam pla) and lime juice directly into the mortar. Stir with the pestle or a spoon to incorporate. Taste. The balance should be: smoky first, then salty, with heat building and a bright lift of lime at the end. If it needs more salt, add fish sauce a teaspoon at a time. More brightness? A squeeze of lime. Don't overthink it. Pound, taste, adjust. That's the method. Fold in the chopped cilantro (pak chi) at the end. Transfer to a small bowl and set it on the khantoke with a basket of sticky rice (khao niew), a bowl of kab moo (pork rinds), and a plate of raw vegetables: long beans, round Thai eggplant quartered, cucumber slices, and blanched pak wan. The kab moo is non-negotiable. Its crunch and fat against the smoky, salty nam prik is the whole point.

Chef Tips

• •Prik num (พริกหนุ่ม) is a specific Northern Thai chili: long, pale green, about the length of your hand, with moderate heat and a grassy, vegetal flavor. It is not a jalapeño, not a serrano, not an Anaheim. If you absolutely cannot find prik num, the closest substitute is a combination of Anaheim peppers (for body and sweetness) with a few Thai green chilies (for heat). But know that you're approximating. The real thing is worth hunting for at a Southeast Asian grocery.
• •The texture of nam prik num should be rough and chunky, never smooth. You should see distinct pieces of charred chili skin, fibers of roasted flesh, bits of caramelized shallot. Every bite is slightly different. That's the mark of a mortar-pounded preparation. If your nam prik looks uniform, you pounded too long.
• •Some Lanna cooks add a small piece of tua nao (ถั่วเน่า), the fermented soybean disc that's unique to Northern Thai cooking, to their nam prik num for an extra layer of funky, umami depth. It's not mandatory for this particular nam prik, but if you can find tua nao at a Northern Thai market, crumble a small piece in during the pounding stage. It's the Lanna equivalent of what shrimp paste does in Central Thai cuisine, a completely different fermented backbone.
• •Kab moo (pork rinds) is not a garnish or a nice-to-have. It's the primary vehicle for the dip alongside sticky rice. The pork fat and crunch against the smoky, salty relish is a textural and flavor pairing that's been perfected over centuries. Serve plenty. People will fight over the last piece.
• •Nam prik num is best the day it's made, when the smoky flavor is sharpest and the lime is brightest. It keeps in the fridge for two to three days, but the lime fades and the smoke mellows. If you're serving it the next day, taste it first and adjust the fish sauce and lime before setting it out.

Advance Preparation

• •The roasting can be done up to a few hours ahead. Char the chilies, garlic, shallots, and tomatoes, peel them, and keep covered at room temperature. Pound and season just before serving for the brightest flavor.
• •Sticky rice (khao niew) takes 4 to 6 hours of soaking before steaming, so start it well before you plan to eat. No shortcuts on this. Soak it in the morning for an evening khantoke.
• •Nam prik num does not freeze well. The roasted chili texture goes mushy when thawed. Make it fresh.

Frequently Asked Questions

Nutrition Information

1 serving (about 110g)