this recipe requires the cucumbery goodness of zubrowka bison grass vodka, i suppose you could use cucumber vodka i remeber finlandia doing a cucumber vodka many moons ago. During my spell in university doing my psychology degree i worked ina popular chain of cocktail bars in the uk called revolution. i kept all my training materials, and myu little laminated ingredient lists that i used to keep in my apron. i thought it was about time i updated them onto recipezaar. There are some revolution classics in this and also some that they dont do anymore at rev. I may be a bit vague on the floating parts of cocktails, i haven’t made them in a while. This may be a good excuse to! the reason why i specify using a glass tumbler to mix the drink in is purely for logistics- creating one drinks worth at a time by measuring it out in the serving glass and serving it in the same glass. its how we used to do it a rev, if your prefer to do it in a cocktail shaker thats fine just beware not to out too much ice in.