Make sure your ripe banana is already cut in coins and frozen.
Put about 1/2 the amount of the milk or milk-substitute that you think you'll use into the blender with the hojicha powder and ground cinnamon. Blend until mixed well.
Add about 1/2 the the remaining liquid and the frozen banana slices to the blender. Blend until smooth.
Check the consistency--if it's too thick, add more liquid. If the smoothie is not thick enough, add more frozen banana slices.
Pour the Hojicha Banana Smoothie into a glass. Garnish with a cinnamon stick (optional). Enjoy!