Grab your blender. If you're using a fresh banana, peel it and break it into chunks.
Add all your ingredients to the blender pitcher. Yes, all of them.
We're not making rocket science here.
Secure the lid tightly. This seems obvious, but you'd be surprised. IMO, nobody wants a kitchen wall painted in smoothie.
Blend on high for 45-60 seconds, or until the mixture is completely smooth and creamy.
Stop and scrape down the sides if needed.
Pour it into your favorite glass, maybe add a fancy straw, and consume immediately for the best texture and flavor.