Sprinkle gelatine over ¼ cup cold coconut milk (from carton). Stir in ¼ cup boiling water until gelatine is completely dissolved.
Add remaining ¾ cup coconut milk, canned coconut milk, dates, maple syrup, vanilla, and dissolved gelatine mixture to a high speed blender. Process until smooth.
Chill this mixture in the refrigerator for an hour.
Process the coconut mixture in an ice cream machine according to manufacturer's direction.
When ice cream has finished processing, stir in walnut pieces.
Either enjoy some soft ice cream right away, or store it in an airtight container in the freezer. After a couple of hours, stir it up and eat it or return it to the freezer.