Virgin Islands Rum Punch

  • 2
    oz
    Rum
  • dash
    Bitters
  • 1
    tsp
    Sugar
  • 1/2
    oz
    Grenadine
  • 1
    1/2 oz
    Orange Juice
  • 1
    1/2
    Grapefruit Juice

shake with ice, strain into a highball glass. garnish with cherry and orange slice