Fill footed mug or a mug with hot water to preheat it, then empty. Pour piping hot coffee into warmed glass until it is about 3/4 full. Add the brown sugar and stir until completely dissolved. Blend in Irish whiskey. Top with a collar of the whipped heavy cream by pouring gently over back of spoon. Serve hot.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Barman Dara Cruise, Four Seasons Hotel, Dublin, Ireland