Place ½ cup cool water in a medium sized bowl or quart size mason jar.
Add ½ cup gelatin powder and stir quickly to create a paste.
Quickly add the ½ cup boiling water and stir again real quickly.
This should form a thick liquid but keep stirring.
Add the honey or maple syrup and stir.
Add the juice and pureed fruit and stir well either by hand or whisk.
Very quickly pour the mixture in to molds or a greased glass baking dish or other greased dish and allow to cool in fridge for 2-3 hours.
Store in fridge in an airtight container for 1-2 weeks.
It is important to have all ingredients ready before beginning as you'll need to work quickly once you start. The easiest method to get fruit puree is to defrost frozen berries and puree them with a blender.