Add rye whiskey, lemon juice, simple syrup, and egg white to a cocktail shaker without ice.
Dry shake vigorously for 10–15 seconds to emulsify the egg white.
Add ice and shake again vigorously for another 10–15 seconds until well chilled.
Strain into a rocks glass filled with fresh ice.
Slowly pour the red wine over the back of a bar spoon to float it on top - do not stir.
Garnish with a lemon or orange zest twist and a cocktail cherry.
The wine float is the defining technique - pour it slowly over the back of a bar spoon held just above the foam so it rests as a distinct layer. A full dry shake before the ice shake is essential to build proper emulsification and volume from the egg white.
My Bar Shelf reads your shelf and shows you every cocktail you can make from what you already own, including New York Sour.