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1
Place a dry wok or heavy pan over medium heat and add the makhwaen, dried chillies, dried galangal, sliced lemongrass, and coriander seed in succession, roasting each until fragrant and lightly deepened in colour, so that each spice releases its oils at its own pace rather than burning the more delicate ones while the tougher ones are still raw. Remove from the heat and transfer to a mortar, pounding to a coarse — not fine — powder, leaving visible flecks of each spice, so the uneven texture gives the finished larb its characteristic bursts of heat and citrus-numbing sensation rather than a flat, uniform warmth. The powder is ready when makhwaen's citrus-numbing note rises clearly above the other spices.
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2
Bring a small amount of water to a bare simmer in a wok, then add the intestine and tripe first, stirring constantly until just opaque and no longer raw, so these denser cuts have time to turn tender without the more fragile liver toughening beside them. Add the liver and cook for thirty seconds only, then add the minced pork, breaking it apart with a spoon so it cooks evenly and stays moist rather than seizing into clumps. The pork should be warm and just cooked through — not browned or dry — and the minced meat should feel barely set when pressed with the back of a spoon.
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3
Remove the wok from the heat immediately, because the residual heat of the pan and meat will carry cooking forward and the bile must never be exposed to direct flame, which would strip its clean bitterness and leave a harsh, acrid edge in the finished dish. Add the bile and fish sauce and fold through at once, so both season the meat while it is still hot enough to absorb them evenly. Taste: the bile should register as a distinct, clean bitterness — present but not overwhelming — and this is where the dish lives or dies.
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4
Add the freshly ground spice powder to the meat while it is still warm, so the fat rendered from the mince can bind with the powder and carry its fragrance into every piece of meat and offal rather than leaving the spice as a dry coating on the surface. Fold thoroughly until the mixture appears uniformly rust-brown with visible flecks of spice and no dry pockets of powder remain. If the powder goes in once the meat has cooled, the fat will have firmed and the spices will clump rather than integrate.
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5
Allow the larb to rest to room temperature before serving, as it is not a hot dish and the flavours — particularly the makhwaen's numbing citrus and the bile's bitterness — come into balance only once the heat has subsided. Serve alongside steamed glutinous rice, pressed warm into portions, so its dense, slightly sticky texture gives the hand or spoon something to work against when scooping the larb. The larb should sit flat and moist on the plate, not soupy and not dry.