Sour Bamboo-Shoot Soup with River Fish

The highlands of Ratanakiri and Mondulkiri were feeding people long before there was a kingdom to feed. The Tampuan, Kreung, and Jarai who farm these red-earth hills built a cuisine around what the forest and the streams gave up freely — and bamboo, which grows faster than almost anything a person can plant, sits at the center of it. This sour samlor is highland cooking at its plainest and oldest: fish pulled from a stream, shoots cut from a clump behind the house, and a broth soured not with the tamarind of the lowlands but with bamboo left to ferment in a jar. It is a soup older than any capital, and the people who cook it were here first.

The technique is quiet and exact. Fermented bamboo carries its own sourness, so there is no tamarind and no palm sugar to chase — you steep the aromatics, cook the shoots slowly until their tang settles into the broth, then poach the fish so gently it stays on the bone. Prahok, used with the confidence of any Khmer pantry, does the salting and gives a depth fish sauce only gestures at. The wild herbs go in torn and off the heat, the way they are gathered: bruised, fragrant, and never overthought. Taste before you reach for lime, and let the bamboo tell you whether it needs anything at all.