Prepare the Cupcakes.

Heat oven to 350 degrees. Line a cupcake pan with paper or foil liners.

Follow the directions on the box of cake mix and combine the mix, egg, and vegetable oil. Stir to incorporate the ingredients. Add coffee in place of the water called for on the box. Add the hot coffee ½ cup at a time, and stir rapidly to combine.

Once the batter is ready, fill the cupcake liners until they are ⅔ full.

Bake the cupcakes according to the directions on the box.

Make the frosting.

Pour the cream into the bowl of an electric mixer. Beat on a medium speed, until the cream forms soft peaks.

Add the powdered sugar ½ cup at a time, while mixing the frosting on a medium/low speed. Scrape down the sides of the bowl as necessary. The goal is for the frosting to be stiff enough to hold it's shape once when the cupcakes are frosted.

Add the bourbon and mix until combined.

To assemble:

Let the cupcakes cool first. This is really important, because warm cupcakes would melt the cream in the frosting making a mess.

Then fill a pastry bag with a medium closed star decorating tip with frosting. Frost the cupcakes, and top with mustaches if you like. (They are Wilton and available at Target).