In a blender, add in the bananas, milk, yogurt, chia seeds, maple syrup, vanilla extract, and cinnamon.
Blend until the bananas are fully blended into the mixture.
Let it set for a couple of minutes (5-10 minutes) in the fridge before going back in and giving it a second stir. Sometimes there’s clumpings of chia seeds so the extra step helps.
Let the chia pudding set in the fridge for at least two hours or overnight.
Notes
Alternatively, you can mash up the bananas with a fork and whisk everything together instead of using a blender.