Peel the bananas and break them into your blender. Quarter the pear, slice out the core and seeds, then roughly chop the pear and add it to the blender.
Add the peanut butter and the cocoa powder (keep back a pinch of cocoa for sprinkling over the finished smoothie, if you like). Pour in 330ml almond milk and drop in a few ice cubes. Blitz till smooth and serve.
To make a thicker shake, chop and freeze the bananas the night before. Then blend the frozen bananas with the plums, peanut butter and cocoa powder but without the ice. It will make a smaller, but thicker and richer smoothie.