Mix all the ingredients together in a bowl and put in the fridge for at least 5 hours (overnight is better).
Pour the mixture into a blender and blend until smooth. You can skip this step if you like, but I like the smoother pudding.
Notes
Make sure your chia seeds haven't been sat in your cupboard for too long. If they have then they won't gel together to make a pudding. If you can't see this happening after about 20 minutes, then you will need to buy some new chia seeds and start again.
This pudding will keep in the fridge for about 4-5 days.
Make different flavour pudding by adding peppermint or orange extract.
You can use any dairy or dairy free milk, however coconut milk will make it much thicker.
If you don't like the texture, whizz it up in a food processor or blender to make it smoother.
You can swap the maple syrup for honey or another liquid sweetener.
Add a pinch of cinnamon for some added warmth flavour.
A pinch of sea salt will bring all the other flavours out too.