1. Add all of the ingredients to a blender, cover with the lid, and whirl until smooth. Add more milk if needed to reach the desired consistency and taste for sweetness, adjusting as necessary. Pour into two glasses and enjoy promptly.
Some smoothie combinations are sweet enough without sweetener (especially if your banana is very ripe). If you want to sweeten up your smoothie, some great options are: honey, agave, maple syrup, Lyle\'s golden syrup, vanilla coffee creamer, etc.