01 - Place frozen bananas, milk, unsweetened cocoa powder, creamy peanut butter, maple syrup or honey, vanilla extract, and a pinch of salt in a blender.
02 - Blend on high speed until the mixture is smooth and creamy.
03 - Taste the smoothie and modify sweetness to preference, adding more maple syrup or honey if needed.
04 - Pour the blended mixture equally into two glasses.
05 - Top each glass with whipped cream, chocolate shavings, or crushed peanuts if desired, and serve immediately.