Blitz the strawberries, milk, whey and maple syrup in a speed blender or food processor.
Add the chia seeds and mix well. Leave to thicken in the fridge for 10 minutes, mixing 2-3 times, to ensure it thickens evenly. Serve straight away or store in a refrigerator.
If you leave the pudding in the fridge overnight, you might want to add some extra milk to it before serving as it will become more thick as the chia seeds absorb the liquid.