Larb Gai (Minced Chicken Salad — Isaan)

Larb is Isaan and Lao in origin — the ceremonial and celebratory minced meat preparation of the northeastern provinces and their cultural extension into Laos. Thompson treats both the Thai-style larb (with toasted rice powder — khao khua as the defining ingredient) and the Chiang Mai northern Thai version (lap, with a complex dry spice paste similar to a dry curry paste).

A preparation of very finely minced (or chopped to a near-paste) chicken, rapidly cooked, dressed while still warm with fish sauce, lime juice, toasted rice powder (khao khua), dried chilli flakes, shallots, mint, and coriander. Larb is the quintessential preparation of northeastern Thailand (Isaan) and Laos — it is not a salad in the Western sense (cool, dressed greens) but a warm minced meat salad of intense flavour where the toasted rice powder's nutty crunch and the mint's sharp freshness are as important as the protein itself. The preparation belongs to the yam category (tossed salads dressed with fish sauce, lime, chilli) but its warm temperature and the toasted rice powder place it in a distinct sub-category.

• Cambodian lort cha is a similar warm-dressed minced meat salad
• Lao laab is the direct precursor — the same preparation without the Thai-style rice powder, or with a different style of preparation
• Vietnamese bún bò huế's herb garnish principle is the same aromatic layering of fresh herbs against a warm, complex meat base

Toasted rice powder's flavour contribution to larb is the combination of Maillard products from the toasting (pyrazines, furans — the same compounds as in toasted coffee and bread crust) and the starchy texture that provides a slightly coarse, nutty coating to the dressed chicken. As Segnit notes, mint and chilli is one of the most physiologically interesting flavour pairings: menthol (mint's primary compound) activates the same TRPM8 cold receptors that are used by genuine cold temperature — producing a cooling sensation on the palate at the same moment the chilli's capsaicin activates the TRPV1 heat receptors. The sensation of larb — simultaneously hot and cool, simultaneously fresh and complex — is a deliberate physiological experience produced by the combination of these two compounds.