Strain into a chilled highball or tumbler packed with fresh ice.
Garnish with a pineapple wedge or lime wheel and a few mint leaves if desired.
Notes
Serve immediately for best flavor and fizz. For a lighter version, add a splash of club soda or coconut water. For a creamier twist, substitute cream of coconut for the simple syrup and shake well. Chilling the glass keeps the drink extra cold.