Add all of the ingredients into a high powdered blender. Ensure they are all room temperature.
Blend on high speed until completely combined and cashews are blended out. This took about 15-30 seconds in a high powdered blender like Blendtec or Kitchenaid. If you're not using a high powered blender, blend until everything is fully blended, looking out that the mixture doesn't get too hot as it'll cause it to separate.
Pour the butter into a container that you're fine the butter taking the shape of.
Cover and allow to set completely, at least 5 hours, but preferably overnight.
Remove from fridge, use as pleased, and put back.
