Add ingredients to the bowl of your high powered blender. Blend on high for 1-2 minutes.
Strain mixture using a nut milk bag or a new, never-been-used seamless nylon sock.
Notes
I have heard that paint bags work well as a replacement for nut bags but that they have to be replaced every couple of times. I have had the same nut milk bag for years with no issues... so I am not sure how economical it is to use a paint bag instead.
Recipe by Healthful Pursuit at https://www.healthfulpursuit.com/2013/09/easy-homemade-coconut-milk-using-shredded-cocoonut/