01 - Place bananas, milk, maple syrup or honey, vanilla extract, and ice cubes into the blender.
02 - Blend on high until the mixture is silky and frothy, approximately 30 seconds.
03 - Taste the shake and add more sweetener if preferred, blending briefly to incorporate.
04 - Pour the shake into two chilled serving glasses for best temperature and presentation.
05 - Top with whipped cream, fresh banana slices, and a sprinkle of ground cinnamon if desired. Serve immediately.