Brew a cup of your favorite coffee.
In a warm glass, add 1.5 oz of Irish whiskey.
Stir in 1 tsp of brown sugar until dissolved.
Pour the hot coffee into the glass over the whiskey and sugar mixture.
Mix well to combine the flavors.
Allow the coffee to cool slightly.
Carefully spoon lightly whipped cream on top.
Do not stir; the cream should sit atop the coffee.
Optional: Sprinkle cocoa powder or chocolate shavings on top.
Serve immediately and enjoy your delicious Irish coffee!