Add all ingredients to a blender or food processor.
Blend until all ingredients are combined.
When your bananas are getting ripe, peal the skin and slice them. Place the slices in an airtight container and place it in the freezer until frozen. They last a really long time frozen, so you can store a large amount in your freezer for when you want to make this and other recipes. The riper your bananas, the sweeter your milkshake will be.In place of the coconut water you can also use filtered water or a milk of your choice such as coconut or almond milk.If you don't have a very powerful blender you may need to add more liquid to make it easier to blend the mixture. I often use my Vitamix for this recipe.Use organic ingredients if possible.