okay i was a little skeptical at first, i mean, ive never had egg whites on cocktails before, i know its good, whiskey sours are pretty famous, but this.... woah, imagine an amazingly made natural daiquiri, but with an extra hint of sweetness (i used bianco vermouth btw) and much lighter from the egg whites, simply fantastic, didnt really made the original recipe i didn't have sweet vermouth but ive heard bianco is versatile and it can substitute sweet easily, if you read this, and have the ingredients, GIVE IT A TRY, i will definitely make one again pretty soon.