Whip up a pot of coffee using your preferred brewing method.
Grab the Baileys. Use the jigger to measure 2 oz of Baileys and pour it into the mug.
Grab the hot coffee Use the jigger to measure 4 - 5 oz of hot coffee and pour it into the mug.Tip: as an alternative to measuring the coffee, you an pour it into the mug topping it off.
(optional) use a bar spoon to mix the drink well.
(optional) Add a large dollop of whipped cream on top.