01 - Add cooled coffee, banana, milk, honey or maple syrup, vanilla extract, ice cubes, and oats (if using) to blender container.
02 - Blend on high speed for 30-45 seconds until mixture achieves smooth, creamy consistency without ice chunks.
03 - Taste smoothie and add additional sweetener if desired to suit personal preference.
04 - Pour evenly into two glasses and serve right away while chilled and frothy.