Put the ingredients together in a blender / mixer and mix into a shake. One serving makes approx. 400 ml.
Very tasty drink on warm summer days.
The amount of cocoa is for chocolate lovers and can be reduced at will.
Tips: I like to buy overripe bananas (often already reduced in price), which I freeze in larger quantities for shakes like these or for banana ice cream (peel, cut into pieces and freeze in the freezer bag / can).
And too much coffee from the day before does not have to be thrown away.