Best described as a "Rum Sidecar", like the classic Sidecar this cocktail is a tad on the sour side unless sipped through sugared rim. Altogether a better...
Rum Sidecar is a good description. Nicely sour, but the sweetness will vary depending on how much sugar adulteration has been done to the rum. We use Barbados rum as Barbados restricts the adulteration of the rum.