Grind nut or seed in a food processor until nut pieces are very fine, but not flour-like.

Add dried prunes and pulse until dough forms into a large ball. Taste and add sea salt, if desired, and pulse a few times again.

Shape dough into 18 balls. Dough will be sticky, it helps to have slightly damp hands while working with dough.

Place shredded coconut in a shallow bowl and roll prune balls in coconut to thoroughly cover ball.