2. Dublin Iced Coffee
Now this is a festive treat that can double up as a dessert. Mix 2 oz of cold brew coffee with 2 oz of Guinness (or another stout), 1.5 oz of Irish whiskey, 0.75 oz of coffee syrup. Pour over ice into a tall tumbler.
Slowly pour in double cream so it sinks through the ice. Top with a sprinkle of cinnamon, and try not to feel too guilty about how decadent it is. This one is best served with a wide straw.