Peel, core and dice apples. Place in a medium saucepan with berries and water.

Heat gently until berries release some juice, then bring to a boil and simmer for 5-7 minutes, until apples are soft.

Remove from heat. Stir in sugar until dissolved. Taste and add more sugar if too sharp (depending on ripeness of the berries).

Puree fruit in a blender or food processor. Let it cool to room temperature, then pour into popsicle molds and freeze overnight.