Wash, stem and stone the cherries. Puree together with the orange juice in a blender. Mix cocoa powder with sugar and half of the milk and heat until the cocoa is dissolved.
So that it does not take so long until the milk has cooled down again, 1-2 scoops of chocolate milk ice cream can be added to the mixer.
Let cool, puree again with the cherry puree and the rest of the milk. Fill into glasses and garnish with the chocolate.