3/4 oz of white rum (or Light Rum)
3/4 oz of Rose's lime juice (or Lime Juice)
1 oz of Dark rum
1/2 tsp of powdered sugar (or sugar)
3/4 oz of Lemon Juice
1 of lime
Shake all ingredients (except lime) well over crushed ice in a shaker. Strain into a small highball glass over crushed ice, squeeze in the lime wedge, and serve.