Cold sauces & condiments
nam prik pao
น้ำพริกเผา · A foundational Thai condiment made from roasted, charred and rehydrated dried chilies pounded with fermented shrimp paste (kapi), palm sugar and fish sauce, then fried in oil until deeply aromatic. The double application of heat — first charring the chilies, then cooking the paste in fat — develops a layered smokiness and complexity that distinguishes it from raw chili preparations. It is an essential seasoning agent throughout Thai cuisine, functioning as a dip, stir-fry base and soup seasoning.
The formula
1 : 0.5 : 0.6 : 0.4 : 0.8 (dried chilies : kapi : palm sugar : fish sauce : oil by weight, 100g base)
Scale by the dried chili weight (100g = 1×). Maintain proportions; palm sugar and fish sauce can be adjusted ±20% to taste. Yields approximately 250–280g finished paste from 100g dried chilies.
Identity
- Roasted dried chilies, not fresh, charred until deeply browned (not blackened)
- Fermented shrimp paste (kapi) as the umami backbone
- Cooked in hot oil until the paste is glossy and fat separates slightly
- Palm sugar for characteristic caramel sweetness
- No fresh chilies in the base formula — only dried and rehydrated
Ingredients
| Base | dried prik kee noo or prik haeng (small dried bird chilies or large dried chilies) | 100g dried weight. These provide the color, heat and smoky foundation. |
| Seasoning | kapi (fermented shrimp paste) | 50g. The primary source of umami and funky depth. Do not substitute. |
| Seasoning | palm sugar (or dark coconut sugar) | 60g. Provides caramel sweetness; adjust ±20% to taste. |
| Liquid | fish sauce | 40ml. Balances sweetness and amplifies umami. Adjust to taste. |
| Fat | neutral cooking oil (coconut oil preferred for authenticity) | 80ml. Medium-high heat. Frying develops the paste's color and flavor. |
| Aromatics | garlic and shallots (optional, traditional Bangkok-style) | About 50g shallots and 30g garlic. Some regional versions omit these entirely. |
Method
- 1Toast dried chilies in a dry wok or pan over medium-high heat, stirring constantly, until deeply browned and very aromatic — 3–5 minutes.Dry-toasting chars the chilies without burning them, developing smoky Maillard complexity. This step cannot be replicated by frying alone.
- 2Transfer toasted chilies to a bowl, cover with hot water and soak 20–30 minutes until fully softened and pliable.Rehydration restores texture and allows the chilies to pound into a smooth paste rather than a crumbly one.
- 3Drain chilies and pound in a mortar with kapi, palm sugar and fish sauce (and optional garlic/shallots) until a rough paste forms.Pounding breaks cell walls to release capsaicin and oils. The physical act of grinding develops flavor beyond what chopping achieves.
- 4Heat oil in a wok over medium-high heat until shimmering. Add the chili-shrimp paste mixture and fry, stirring constantly, for 5–8 minutes until the paste darkens to a deep reddish-brown and the fat separates visibly.Frying in oil completes flavor development, caramelizes sugars and eliminates any raw shrimp-paste aroma. The fat separation indicates proper cooking.
- 5Taste and adjust: add a few drops fish sauce for salt, a pinch more palm sugar for sweetness, or a splash more oil for gloss.Final seasoning after cooking ensures proper balance, as heat modifies flavor intensity.
Techniques that matter
Dry-charring
The chilies must be toasted in a dry pan, not fried, to develop genuine smokiness without excess fat absorption or uneven browning.
Pounding vs. blending
Mortar and pestle crushing preserves texture and flavor oils better than food processor chopping, which can heat the paste and produce a mealy result.
Frying the paste
Cooking nam prik pao in oil (phak si technique) is essential — it stabilizes the paste, develops the characteristic glossy appearance and fat-separation, and creates flavor compounds that raw pastes lack.
Variations & derivatives
Nam prik pao gai (with chicken)Central Thailand
Paste mixed with ground roasted chicken and additional shallots, served as a dip — the chicken replaces protein otherwise missing from the dip format.
Nam prik pao khui (grilled)Northeastern Thailand (Isaan)
Extra-concentrated paste cooked until nearly dry, used as a grill seasoning. May include toasted rice powder for texture.
Southern Thai nam prik gaengSouthern Thailand
More pungent version with extra kapi and sometimes added dried shrimp; used in coconut milk-based curries.
Jaew bongLaos
Lao cousin made with dried chilies and toasted rice powder; often includes galangal. Less oily than Thai versions.
Used in these dishes
Substitutions
- kapi (fermented shrimp paste) → 1 tbsp white miso + ½ tsp fish sauce — Miso provides fermentation but lacks the briny seafood character. Use only in emergencies; the result will lack authenticity.changes result
- palm sugar → light brown sugar — Brown sugar provides sweetness and some molasses notes but lacks the slightly smoky, terroir-driven depth of palm sugar.
- dried bird chilies → dried cayenne or ancho chilies — Bird chilies provide intense heat and classic flavor, but dried cayenne works. Ancho provides smokiness but less heat.
Troubleshooting
Paste tastes bitter and harsh
Chilies were over-charred during dry-toasting or burned during frying → There is no correction for burnt notes. Discard and start over, monitoring heat more carefully. Chilies should be deeply brown, not black.
Paste tastes flat and raw
Insufficient cooking in oil; shrimp paste not fully incorporated or fried → Return the paste to hot oil and fry longer, 3–5 additional minutes, until the raw shrimp-paste aroma disappears and color deepens.
Paste is too oily or greasy
Excess oil added during frying or too-high heat causing oil absorption rather than fat separation → Drain excess oil by tilting the wok and spooning off the layer. If needed, add a little more pounded paste to absorb excess.
Paste is too salty
Too much fish sauce or kapi, or insufficient palm sugar to balance → Add 10–15g more palm sugar and a teaspoon of water to dissolve; fry briefly to integrate. Future batches: reduce fish sauce by 10%.