Muldoon’s Saloon in Long Beach, California created this Dublin Sour using InstaFoam. They dress the drink with a shamrock, but you can stencil one on, as InstaFoam is great for holding any sprayed on design.
Fresh Lemon Juice
Use any standard whiskey sour recipe and substitute the above. Sprinkle nutmeg on top and look for the Leprechaun!