Main ingredient of kuchela is the pulp of unripe mangoes that has been grated and thoroughly strained, if necessary by drying. Afterwards it is mixed with amchar massala and various additional spices.
Amchar masala, which includes fenugreek, peppercorns, coriander and fennel, is a seasoning specific to Trinidad but was likely inspired by spice mixes used in India for pickling fruits and vegetables.
We found this kuchela at Latin & Caribbean Food Store, Units 58 & 59 Granville Arcade, Brixton.