Place the dates, peanut butter, cocoa powder, walnuts, vanilla, and salt into a food processor (or blender) and pulse until all of the ingredients are blended together and forms a thick dough. If the dough doesn't come together add 1 tablespoon of water. Roll the dough into small balls and then store in an airtight container in the refrigerator. 2. Pour coconut in small bowl and roll balls in mixture. 3. Let the bites set for about 3 hours or overnight in the refrigerator. You can also place in the freezer. Note: The balls can last up to 7 days in the fridge