Wash and peel pears with stalk. Put them with the stalk upwards into a narrow high pot. Add cloves, bay leaves, cinnamon stick and lemon peel. Sprinkle 125 g sugar over it and pour the wine over it.
Bring to the boil and simmer at low heat for about 1 hour. In the meantime, whisk the egg yolks, 50 g sugar and bourbon vanilla sugar with the whisks of the hand mixer until creamy white. Stir mascarpone until smooth and add to the egg yolk mixture.
Cold. Lift the pears out of the wine. Let wine and spices boil down well by half, remove spices. Serve pears with some boiled wine and a dollop of cream lukewarm.