1 tsp of grenadine syrup
1 1/2 oz of Bacardi 151 rum (or overproof rum)
2 tsp of fresh lime juice (or Lime Juice)
Pour the Bacardi 151 rum, lime juice and grenadine into a cocktail shaker half-filled with cracked ice. Shake well, strain into an old-fashioned glass 1/2 filled with ice cubes, and serve.