The whiskey sour is classic cocktail with a history going back more than a century, and its enduring appeal is no surprise. The drink combines the holy trifecta of ingredient bases—a spirit, sweet element and citrus—which has long been the backbone to successful cocktail recipes everywhere.
However, the one potential kicker is that the drink generally incorporates egg whites, which understandably turns off at-home cocktail enthusiasts squeamish at the thought of drinking raw egg. (Egg whites can improve a drink’s mouthfeel and shouldn’t be feared, but that’s a subject for another time.)
For these folks, we’ve concocted a fun rendition sans eggs. Introducing the whiskey sour slush, a frozen riff that offers the whiskey sour’s quintessential sweet-and-citrusy flavor profile, but in an icy and refreshing format. Best of all, this batched recipe is perfect for serving to large groups, whether at holiday parties, birthday gatherings or simple backyard hangs.
For an added twist on this frozen version of the cocktail, whip up some red wine syrup for a New York sour slush. Serves 10–16.
How to Make the Whiskey Sour Slush
- 12 ounces frozen lemonade concentrate
- 6 ounces frozen orange juice concentrate
- ¾ cup lemon juice
- 2–2½ cups bourbon (depending on desired strength of cocktail)
- 1 liter lemon-lime soda or ginger ale (lemon-lime soda for sweeter, ginger ale for spicier)
- Red wine syrup (optional, ingredients and directions below)
1. Combine all ingredients in a large plastic container.
2. Stir until well-integrated and place in freezer.
3. To serve, remove mixture from freezer and lightly thaw. Stir before pouring, add red wine syrup to the bottom of each glass (optional) and pour into Rocks glasses.
Red Wine Syrup
For red wine syrup, whisk 2 cups of red wine and 1 cup of sugar together in a saucepan over high heat. When all the sugar is dissolved, let the wine boil and reduce to half. Strain into a container and chill in the refrigerator until ready to use. Batch out or cut in half as needed but keep the 2:1 ratio.