01 - Place the bananas, cold milk, maple syrup or honey, vanilla extract, and ice cubes into a blender.
02 - Process the mixture on high speed for 30 seconds until fully blended and creamy.
03 - Taste the shake and adjust the sweetness if needed, adding more sweetener to preference.
04 - Divide the shake evenly between two chilled glasses.
05 - If desired, top with whipped cream, banana slices, and a light sprinkle of ground cinnamon. Serve immediately.