Mix together and heat up.
(You can leave the mixture to ripen overnight – it will be even more flavoursome the next day.)
Grate the vanilla and mix with other ingredients. Whisk until stiff.
Finishing and serving
Pour the hot chocolate in a glass and top off with the Chantilly. Top with some Caramel Topping and add a pinch of fleur de sel. Decorate with Salted Caramel pearls