Pour the milk and Greek yoghurt into the jug of a blender or food processor
Remove the banana from its peel, break into pieces and add this to the blender
Add your choice of coffee - either filtered or instant
Add the cinnamon or cocoa and additional sweetener if desired
Blend all ingredients until smooth and creamy
Add more milk or yoghurt to adjust the consistency of the smoothie
Check the sweetness and add more flavouring and sweetener if desired
Pop in a couple of ice cubes to serve