The Zesty Irishman, on the surface, is similar to a Whiskey Sour with the exception of a couple of rather interesting twists.
If you are familiar with Drambuie in drinks like the Rusty Nail, you will be pleasantly surprised with its pairing with Scotch's counterpart. Here the liqueur is not only paired with Irish whiskey but citrus as well—making a distinct contrast that we typically do not think of mixing with Drambuie. It's interesting, certainly different from the norm, and gives a new perspective to the liqueur's pairing potential. This recipe was provided by Drambuie Liqueur