2 oz coconut cream
1 oz passionfruit syrup
1 oz lime juice
1 egg white
(or 1 oz aquafaba)
2 oz club soda
Dry shake the cream, syrup, lime juice, and egg white (or aquafaba) in a shaker without ice.
Fill the shaker with ice and shake again, vigorously.
Strain into a glass and top with club soda.