Whiskey Sour – A Brief History: The whiskey sour was first seen in print in Jerry Thomas’ 1862 book The Bartender’s Guide (https://amzn.to/2BHARXW) but of course it had been around some time before Jerry’s book. Jerry’s recipe called for a wine glass of bourbon or rye, the juice of half a lemon and a large teaspoon of powdered white sugar dissolved in sparkling water. It was served in a claret glass and garnished with berries. The drink evolved and the egg white component was added later but is often referred to as optional.