Fill a shaker with ice. Add three measures gin, one measure vodka, and 1/2 measure of Lillet Blanc (not white rum - ExtraTasty is on crack). Shake vigorously, then strain into a chilled martini glass. Add the lemon twist and enjoy.

Contrary to what the movies would have you believe, this is actually James Bond's martini of choice. The movies were sponsored by a vodka company so they had them changed to vodka martinis for the movies, but this is in fact the original James Bond martini as described in the books.