Shaking this Daiquiri with a wide grapefruit zest (termed a Regal Shake) has a surprisingly dramatic effect on the finished cocktail, which could be confused...
I love this recipe. I used Rum Clarin (St. Benevolence) from Haiti, very funky tones. I did have an accident, which I think made it better. I was making my wife a martini at the same time, and I put half ounce of dry vermouth in. More complexity, more flavor.
Very refreshing. The extra grapefruit oil in the cocktail gives it a strong grapefruit falvour, but also adds a hint of bitterness. Thinking of adding a few grapefruit bitters the next time.