Preparation:
Heat the milk
Heat the milk in a saucepan over a medium heat, but do not let it boil.
Melt the chocolate
Add the chopped dark chocolate to the warm milk and melt while stirring.
Add the cocoa and spices
Stir in the cocoa powder, sugar, cinnamon, nutmeg and vanilla extract until everything is well mixed and the chocolate is creamy.
Foaming (optional)
Foam the hot chocolate lightly with a whisk to achieve a fluffier consistency.
Serve
Pour the hot chocolate into cups, garnish with whipped cream and chocolate shavings and dust with an extra sprinkling of cinnamon if desired.