No salt is added during fermentation — the sourness comes entirely from lactic acid bacteria working on the packed leaves, and once sun-dried the greens keep for months.
Mustard, radish, or cauliflower greens are packed tight and left to ferment for roughly a week, then spread out to dry in the sun until dark and pungent. Southern Bhutan's Nepali-descended Lhotshampa households simmer it into a sour soup or fry it as a side, eaten alongside rice and lentils.
Why it's made this way: Fermenting and drying greens let southern Bhutan's Nepali-heritage farming families store garden vegetables through the lean season, a technique carried into the region along with the broader Lhotshampa food traditions of Nepal, Sikkim, and Darjeeling.
Roughly what's in it
110kcal
6gprotein
18gcarbs
1gfat
Estimated per typical street-vendor portion — not lab-tested.