Blend the hemp seeds in a high-speed processor/blender. It's best to do so at intervals so the seeds (and machine) don't overheat. For a smooth hemp seed butter, blend for about 5-6 minutes, with breaks every 2-3 minutes.
Once the homemade hemp seed butter is ready, transfer it to an airtight glass container and keep this in the fridge for 1 month. It can also be frozen, for longer.
Video
Notes
For some flavoured variations of this seed butter, check my blog post!