Step 1

Combine coffee granules and sugar in a small heatproof bowl. Add boiling water and beat with an electric mixer on high speed until the mixture is thick and fluffy, about 2 minutes. Set aside for a few minutes to cool.

Step 2

Fill two rocks glasses (or Irish coffee mugs) with ice. Pour 1 1/2 ounces vodka, 1/2 ounce coffee liqueur and 3 tablespoons milk into each glass and stir to chill. Spoon the whipped coffee on top of the drinks. Serve with a spoon or a straw and stir to combine before drinking.