This easy and delicious Aperol Sour cocktail recipe combines Aperol liqueur with gin, lemon juice, and egg whites to make a drink that's full of flavor and bright citrus notes.
Use a paring knife to clean up the sides of your piece of lemon peel, and then make a slit in the middle of the peel to attach it to the glass. Set aside.
Add the Aperol, gin, lemon juice, and simple syrup to a cocktail shaker.
Fill the shaker with ice and shake well about 15-20 times.
Strain out the ice, collecting the liquid in the other side of your cocktail shaker (or in a separate glass, and then add it back to the shaker).
Add in the egg whites.
Seal the shaker without ice and do a dry shake for at least a minute. Or, you can use a milk foamer to froth up the mixture for a quick shortcut (but the bubbles won't be as smooth).
Pour the mixture through a fine mesh strainer into your chilled coupe glass.
You can optionally squeeze a separate large lemon peel or add some drops of bitters to the top of the foam for extra aroma.
Add the garnish to the rim of the glass, and serve.
Notes
You can use Fee Foam, aquafaba or another vegan foamer in place of the egg whites if you prefer.