Delicious served with vanilla ice cream or crème anglaise.
Add the white wine, water, cinnamon stick, vanilla bean, lemon rind, lemon juice and sugar to a saucepan.
Stir over medium heat until the sugar dissolves, then bring to a boil before reducing to a simmer.
Add the prepared pears and poach, covered with a cartouche (see notes), for 10 to 15 minutes, until they are tender, but not mushy.
Return the poaching liquid to the heat and simmer until the mixture reduces by half. The syrup is ready when it is thick enough to coat the back of a spoon. Remove the cinnamon stick and vanilla bean from the syrup.