01 - Place ripe bananas, cold milk, maple syrup or honey, vanilla extract, and ice cubes into the blender.
02 - Blend the ingredients on high speed until fully smooth and frothy, approximately 30 seconds.
03 - Taste and adjust sweetness by adding more maple syrup or honey if desired.
04 - Pour the blended shake evenly into two chilled serving glasses.
05 - Top with whipped cream, banana slices, and a sprinkle of cinnamon if using. Serve immediately while cold.