In a large saucepan over medium high heat add your sweetened condensed milk, cocoa, cinnamon, milk, vanilla and a small pinch of salt. Stir regularly until you see small bubbles appear - do not boil.

Turn your heat down to medium and stir in your chocolate morsels/chips and cayenne pepper if using. Stir until chocolate has melted.

Pour hot chocolate into mugs, top with whipping cream and chocolate shavings.