In a medium saucepan, pour in the milk and heat over medium heat. Stir occasionally to prevent it from scorching on the bottom.

While the milk heats, brew your coffee to a strong flavor.

In a separate bowl, whisk together the cocoa powder and sugar.

Once the milk is steaming, add the cocoa mixture to the saucepan. Whisk until the cocoa and sugar are fully dissolved.

Pour in the brewed coffee and add the vanilla extract. Whisk to combine.

Remove the saucepan from heat and stir in the whiskey or rum.

Pour the mixture into mugs or heatproof glasses.

Top with a generous dollop of whipped cream and a sprinkle of cinnamon.