It's often mixed with grated seed of the bambangan, a wild mango native to Borneo, which adds a sharp tang to the lime-cured fish.
Thin slices of raw Spanish mackerel are tossed with lime or calamansi juice, bird's eye chilli, ginger, and shallots, sometimes with grated wild mango seed folded in for extra tang. It's a fixture of Kadazan-Dusun celebrations and now sold at markets and restaurants across Sabah.