In a blender or food processor, blend together the pureed blackberries, coconut milk and coconut sugar.
Pour into a medium sized bowl. Stir in chia seeds until well mixed.
Cover and let set in the refrigerator for at least three hours, overnight preferred.
When ready to serve top with unsweetened coconut and more blackberries. If desired, toast the coconut in a dry fry pan over medium heat. Stir often for 5 minutes or until slightly brown.