- 1½ oz (45 ml) vodka
- ½ oz (15 ml) Aperol
- ¾ oz (22.5 ml) St-Germain Elderflower liqueur
- ¾ oz (22.5 ml) freshly squeezed Ruby Red grapefruit juice
- ¾ oz (22.5 ml) freshly squeezed lemon juice
- 1 tbsp (15 ml) egg white
- In a mixing glass add vodka, Aperol, St-Germain, fresh grapefruit and lemon juices, and egg whites; shake with ice until well mixed and egg whites are emulsified. Strain into a chilled champagne saucer. Garnish with the oils of a grapefruit twist.