A meringue that's crisp on the outside and soft on the inside, topped with chocolate ganache, pears, caramelised walnuts and melted chocolate - this wreath is spectacular without being difficult to make. It's a lovely dessert idea for the festive season, light and elegant. And if you want to make it in advance: no problem! The ganache can be kept in the fridge, the meringue can be made the day before and it's easy to assemble.