Add hot water to an 8 ounce or larger coffee mug and allow to sit and warm mug while proceeding.
Make coffee and whip 1/4-1/3 cup of heavy cream until soft peaks form or use a whipped cream dispenser.
Pour the water out of the mug and add Irish whiskey and caramel, stir to combine. Pour in coffee and stir. Top with whipped cream and garnish with additional caramel sauce as desired.