Place the blueberries and water in a small saucepan over a medium heat and warm up until the berries start to burst.  Stir frequently to avoid sticking to the base of the saucepan.

Using a fork or potato masher, smash the berries until desired texture is obtained.

Add the chia seeds, vanilla and maple syrup and stir until well combined.  Adjust sweetness if needed.

Allow to cool before using.  Keeps well in a stored, sealed container for up to 7 days.