01 - Add sliced bananas, milk or milk alternative, yogurt, honey or maple syrup (if using), vanilla extract, and ice cubes to blender jar.
02 - Process on high speed until the mixture is completely smooth and creamy, approximately 30 to 45 seconds.
03 - Taste smoothie and add additional sweetener if desired, blending briefly to combine.
04 - Pour blended smoothie into two glasses and serve immediately.