TWIST & TOAST
01
In a cocktail shaker, combine the vodka, Aperol, elderflower liqueur, ruby grapefruit juice, lime juice, and egg white.
02
Dry shake vigorously (without ice) for about 30 seconds to build a nice froth. Add ice and shake again for 20 seconds until well chilled.
03
Double strain the cocktail into a chilled coupe glass. Express a grapefruit twist over the top to release its oils, then use it as a garnish.