Put the freshly washed, pitted and pitted cornel cherries in a blender jar. Add the peeled and chopped banana and also the washed, pitted and quartered pear. Puree with a hand blender, add a dash of cornel cherry syrup and dilute the consistency of the drink with a little water as required.
This mixture is already a hit and sweetening is superfluous. But if you want to refine it, you can add any of the above ingredients of your choice.