The whiskey sour is a classic. As Elliott Clark of Apartment Bartender puts it, "It's citrusy. It's refreshing. It's a classic cocktail that really lets the spirit shine through." But if your memory of the standard whiskey sour is a little too bitter for your taste buds, this slightly sweeter spin on the old school tipple should be right up your alley. You'll need to make his basil peach syrup, but it's a worthy weekend project.