This time-tested classic is simple, and delicious. Take a strong black coffee, and add Baileys at a 1:3 ratio. Adjust to tastes.
Preheat mug by rinsing with hot water to keep the coffee from cooling too quickly
Comebine Baileys Irish Cream Liqueur and hot coffee in a cup
Optional: top with whipped cream and cinnamon powder
2 oz of Baileys Irish Cream Liqueur works out to about 0.60 fl. oz. of alcohol (18 ml)
An Irish Coffee mug makes this drink look extra classy.