1 to 2 ounces (1/8 to 1/4 cup) rum
3 ounces (about 1/3 cup) cranberry or pomegranate juice
3 ounces (about 1/3 cup) pineapple juice
Splash of grenadine syrup
1.Pour the rum, cranberry juice, pineapple juice, and grenadine in an ice-filled cocktail shaker.
2.Shake like hell.
3.Strain into a highball glass filled with ice cubes.