Larb (Minced Meat Salad)

Larb is the ceremonial and everyday preparation of Isaan — northeastern Thailand — and Laos, where it is considered a national preparation. Thompson traces its connection to the ceremonial use of raw or barely cooked meat (larb dib — raw larb) in ritual contexts and its evolution into the cooked preparation now universal across the region. The toasted rice powder, Thompson notes, is the technique that distinguishes Isaan cooking's textural sensibility from the central Thai kitchen.

A preparation of minced or finely chopped meat — pork, chicken, duck, beef, or offal — dressed with toasted rice powder, lime juice, fish sauce, fresh chilli, shallots, and an abundance of fresh herbs (mint, coriander, sawtooth coriander). Larb is simultaneously a salad, a cooked preparation, and a flavour statement — its toasted rice powder providing texture and a roasted grain depth found in no other Thai preparation. It is the emblematic preparation of northeastern Thailand (Isaan) and Laos, and its defining characteristic is the toasted rice powder (khao khua) that thickens the dressing and provides a nutty, slightly grainy texture against which the herbs and lime read most completely.

Toasted rice powder's flavour is the result of the same Maillard chemistry that produces the flavour of roasted grain in coffee, toasted bread, and seared meat — but in rice, the Maillard reaction produces a specific set of pyrazines and furans (roasted grain aromatics) that are structurally different from those produced in meat or wheat. These pyrazines are fat-soluble to a moderate degree — they distribute through the meat's natural fat content in the dressing and are delivered to the palate with the meat's own aromatic compounds. As Segnit notes, mint and lime is a pairing of mutual amplification — the mint's menthol and linalool provide a cooling contrast that makes the lime's citric acid read as 'bright' rather than merely sharp. In larb, this pairing operates against the background of roasted grain and fish sauce — the mint and lime are the 'light' elements that prevent the preparation's savoury depth from becoming heavy.