Aromatic bases & spice pastes

panang paste

เครื่องแกงพะแนง · A thick, rich Thai curry paste distinguished by the addition of roasted peanuts, which give it a dense body and characteristic nutty flavor absent from other Thai curry pastes. It is the aromatic and flavor foundation for panang curry, cooked in coconut cream to bloom fat‑soluble compounds before liquid is added.

panang paste
Family · Aromatic bases & spice pastesDifficulty · ModerateMake-ahead · YesYield · 500 g paste → base for 8–10 batches of curry (≈2 kg finished curry)

The formula

4:2:2:0.5 chilies:peanuts:aromatics:shrimp paste

Scale by feel: for 500 g paste use ~200 g dried chilies, 100 g roasted peanuts, 100 g mixed galangal/lemongrass/kaffir lime, 25 g shrimp paste, plus shallots, garlic, salt. Paste keeps 3 weeks refrigerated, 3 months frozen.

Identity

  • Roasted peanuts are the defining binder and flavor — present in every authentic version
  • Dried prik haeng (large dried red chilies) soaked before pounding, not fresh chilies
  • Galangal, not ginger — sharper, more floral, distinctly Thai
  • Shrimp paste is essential umami binder; no substitute replicates the funk
  • Kaffir lime zest provides the signature clean citrus note; skin only, no bitter pith

Ingredients

Basedried prik haeng chilies (or New Mexico / deggi), seeds removedSoak 20 min in warm water; discard soaking liquid to reduce bitterness. Use large dried chilies, not small bird’s eye.
Binderroasted unsalted peanutsRoast at 160 °C 12–15 min until golden and fragrant. Can substitute roasted cashews for non‑Thai adaptations.
Aromaticsfresh galangal, roughly choppedUse 2–3 cm piece; pound to a coarse paste. Galangal is fibrous; ginger is not an acceptable substitute.
Aromaticslemongrass (lower third only), slicedOnly the tender bottom portion; the tough upper stalk is too fibrous.
Aromaticskaffir lime zest (outer green skin only)Use a microplane or peel only the outer green layer; the white pith is bitter. Can substitute 1–2 leaves finely grated, but zest is more concentrated.
Aromaticsshallots and garlicShallots add sweetness; garlic adds backbone. Both pound smoothly with other ingredients.
Bindersalted shrimp paste (kapi)Provides deep umami and funk essential to Thai curry paste identity. Use Thai or Malaysian kapi; Thai is more pungent.
Seasoningsalt, ground coriander, cumin (optional)Salt aids pounding and preservation. Coriander adds warmth; cumin is optional, used in some regional versions.

Method

  1. 1Soak dried chilies in warm water (40–50 °C) for 20 minutes until pliable; drain thoroughly and discard soaking liquid.Rehydration softens chilies for pounding; discarding liquid removes bitter compounds and excess surface salt.
  2. 2Roast peanuts at 160 °C for 12–15 minutes until golden brown and fragrant; cool completely before use.Low‑and‑slow roasting develops Maillard compounds and intensifies nutty flavor without burning the natural oils.
  3. 3Pound galangal and shrimp paste together first until a rough paste forms.Galangal is the hardest, most fibrous ingredient; the salt in shrimp paste acts as an abrasive to break it down.
  4. 4Add lemongrass and chilies; pound to a coarse paste, working in a circular motion with the pestle to bruise fibers.Circular motion tears cell walls more efficiently, extracting oils and pigments from the chilies.
  5. 5Add kaffir lime zest, shallots, garlic, and peanuts; continue pounding to a smooth, cohesive paste.Peanuts act as a lubricant and binder, helping everything coalesce into a thick, unified paste.
  6. 6Season with salt and optional spices; pound briefly to incorporate; taste and adjust.Final seasoning integrates everything; the paste will mellow when cooked in coconut cream.

Techniques that matter

Mortar and pestle pounding

Traditional method bruises plant cells rather than cutting them, releasing oils and pigments more effectively. The peanut oils also help extract compounds from harder aromatics.

Fat blooming in coconut cream

Frying the paste in coconut cream (before adding coconut milk) dissolves fat‑soluble compounds (galangal oils, chili pigments) that water alone cannot extract, deepening flavor and color.

Dried vs. fresh chilies

Dried prik haeng provides deeper, more complex heat and a brick‑red color. Fresh chilies lack intensity and introduce excess moisture for a stable paste.

Variations & derivatives

Mu Yang PanangThailand

Panang paste with dried herbs added to the curry itself (often pandan leaf and holy basil), not in the paste base.

Panang with curry powderWestern/English Thai restaurants

A lighter, more accessible version that uses commercial red curry paste plus peanut butter, reflecting bastardized adaptation.

Kare Paste (Japanese adaptation)Japan

Thai panang influence on Japanese curry roux, sometimes incorporating peanuts, though fundamentally a different technique (roux‑based, not paste‑based).

Used in these dishes

Substitutions

  • roasted peanutsroasted cashews or almond butterCashews are softer and less distinctive; almond butter is smoother. Neither replicates the peanut character but works in nut‑allergy adaptations.changes result
  • galangalginger + a pinch of lime zestGinger is more pungent and sweet; it changes the flavor profile significantly but provides a reasonable aromatic base.changes result
  • shrimp pasteyellow miso pasteMiso lacks the distinctive oceanic funk but provides umami. Use sparingly — miso is saltier.changes result
  • dried prik haengNew Mexico or deggi chiliesThese are the correct commercial substitutes. Ancho chilies are too smoky and sweet. Bird’s eye chilies are too hot and small.

Troubleshooting

Paste tastes raw and grassy, not aromatic

Chilies were not soaked long enough or were pounded cold; aromatics not sufficiently bruisedEnsure 20‑minute soak in warm water; warm the mortar slightly by pouring hot water in it then drying before pounding — warmth aids extraction.

Paste separates or is too oily when cooked

Too much fat from peanuts; paste was not emulsified properly during pounding; food processor over‑processed nutsHeat gently in coconut cream, stirring vigorously to re‑emulsify; next time, add peanuts last and pulse rather than process.

Paste lacks depth and is one‑dimensional

Shrimp paste omitted or insufficient; aromatics not pounded to break cell walls; no fat‑blooming stepEnsure shrimp paste is included; always bloom paste in fat (coconut cream or oil) before adding liquids to extract fat‑soluble compounds.

Storage

Keeps 3 weeks refrigerated in an airtight container with a thin layer of oil on top; 3 months frozenPress plastic wrap directly onto surface to prevent oxidation; store in small portions for convenient scaling; freeze in ice‑cube trays then transfer to freezer bags. Reheat: No reheating needed — paste is used as‑is. If frozen, thaw overnight in refrigerator. Let it come to room temperature before cooking if stiff.

The science behind it

Fat‑soluble flavor compoundsEmulsification in pasteCell‑wall disruptionOsmotic dehydration