Dry fry the coriander and cumin seeds on a low heat until the aromas begin to emerge - this should only take a couple of minutes. Transfer to a food processor, along with all the other ingredients.
Blend for 1 minute to combine - you may need to scrape down the sides a few times, to make sure it blends properly. Add a little more water, if needed, to create a smoother paste and adjust the spices to suit your taste.
Transfer to an airtight jar (our 300ml Coconut Oil jar is the ideal size) and store in the fridge until ready to use - it should keep for up to 1 month in the fridge, assuming good food hygiene.