First toast your cumin and coriander seeds. Heat a small frying pan over a medium heat and toast the seeds until starting to smell fragrant. Stir occasionally to stop them from burning.
Place the toasted seeds (and fenugreek seeds if using) into the blender and pulse until you have a coarse powder.
Add the remaining ingredients to the blender and process until smooth.
You will probably need to stop and scrape the sides down at least once.
Store in an airtight container in the fridge for a couple of weeks or freeze in small portions to use at a later date.
Notes
*If you use the fresh coriander your paste will look browner - but taste amazing. Leave it out or reduce the amount if you want a redder paste.
Nutritional information is approximate and is intended as a guide only.