Isaan — the northeast plateau of Thailand bordering Laos and Cambodia — has a culinary identity distinct from Central Thai cooking: more sour (pla ra/fermented fish), more pungent (raw garlic and shallots), more bitter (bitter eggplant, bitter melon), and anchored by sticky rice (khao niaw, HS-21) rather than jasmine rice. The poverty of the plateau's soil has produced a culinary tradition of maximum flavour extraction from minimal ingredients.
- **Pla ra (fermented fish):** The defining ingredient — raw freshwater fish fermented with salt and roasted rice powder for months. Its extreme pungency is the "funk" base of Lao and Isaan cooking (analogous to the prahok of Cambodia or the bagoong of the Philippines). Used raw in som tam Lao; cooked in sauces. - **The bitter dimension:** Isaan cooking uniquely embraces bitterness — bitter eggplant (makheua phuang, tiny pea eggplants), bitter melon, and bitter herbs provide the fourth dimension absent from Central Thai cooking's sweet-sour-salty-hot triangle. - **Raw aromatics:** Shallots and garlic are frequently used raw (not fried) — their full sulphur compound intensity is retained. This is categorically different from the cooked aromatics of Central Thai and Chinese preparations. - **The herb abundance:** Fresh herbs in larger quantities than any other SE Asian tradition — mint, coriander, spring onion, Vietnamese mint, dill (specific to Lao preparations), sawtooth coriander.
Hot Sour Salty Sweet