Ingredients like kerisik, kaffir lime leaves and turmeric leaf can be omitted if it is not available. Alternatively, you can make your own Kerisik.
To make your own kerisik (toasted coconut)
Toast 100g of shredded fresh coconut in a dry pan.
Keep a close eye on this, as it will burn really quickly. It should be a lovely deep brown colour when ready. In a food processor, blend the toasted coconut till fine. Alternatively, you can pound the toasted coconut in a pestle and mortar.