Put a mason jar in the freezer (this is for making the cream topping. If you'd rather use whipped cream, skip this step).

Make a pot of strong coffee.

While the coffee is brewing, make yourself a batch of hot chocolate. We recommend something homemade and creamy, but any hot chocolate will work.

Pour your hot chocolate into the bottom 1/3rd of your mug.

Pour your coffee over the back of a spoon into the mug, filling to 2/3rds full.

Put your heavy cream into the chilled mason jar and close.

Shake until the cream thickens slightly.

Pour cream over the back of a spoon, filling the mug completely.

Top with chocolate shavings.