The Vesper Martini, a cocktail from James Bond’s Casino Royale, is traditionally made with Gordon’s gin, vodka, Kina Lillet, and garnished with lemon peel. However, modern versions often use substitutes like Lillet Blanc with aromatic bitters due to the discontinuation of Kina Lillet. The cocktail is usually shaken over ice to dilute the strong liquor content, which includes 2 ounces of gin, 1 ounce of vodka, and 1/2 ounce of Lillet Blanc.