Bring the cherry juice with cinnamon and cloves to the boil.
Peel and halve the pears and remove the core. Immediately add the pears to the boiling cherry juice and cook for about 3 minutes. Let the pears cool in the juice.
Mix the quark and yoghurt until smooth and season with the vanilla pulp and sweetener. Pour the vanilla yoghurt onto a large plate as a mirror, arrange the pears on top and serve sprinkled with pistachios.