2 oz. Bacardi Rum (more Bacardi Rum drinks)
3/4 oz. Gin (more Gin drinks)
1 Lime (Juice of, fresh) (more Lime drinks)
dash(es) Grenadine (more Grenadine drinks)
1 tsp. Sugar (more Sugar drinks)
Shake all but rum with ice until cold. Add rum and shake again. Strain into a cocktail glass.