Add Irish whiskey, Baileys Irish cream, coffee ice cream and cold-brew coffee into an Irish Coffee mug.
Garnish with whipped cream and chocolate shavings.
Cold-brew coffee: Use your favourite bottled cold-brew coffee or make it yourself by soaking 140 grams of coarse ground coffee beans with 950 ml of water for 12 hours. After steeping, strain through a coffee filter into a clean jar. Discard the solids. Store the cold brew in the refrigerator for a few days.