Bostonised Sour is finger licking strong cocktail at 1.3 standard drinks. Shaken with 45ml whiskey glayva and 20ml lemon juice with 15ml egg white as well as 10ml sugar syrup including 100ml ice and best served with fish and seafood dishes. Just place ice into shaker then add all ingredients to shaker and shake well until very frothy. Strain into glass and garnish with fine twist of lemon zest and served in a saucer glass cold.