Pour the milk into a medium saucepan, add the cinnamon sticks and stir frequently over a medium heat (don’t let it boil) until the milk is fragrant, about 5 mins.

Remove and discard the cinnamon sticks, then add the cocoa, vanilla, chilli powder and sugar. Remove from the heat and whisk until the mixture is smooth and frothy – this will only take a couple of minutes. Divide between two mugs and garnish with fresh cinnamon sticks.