Biff is drinkable quite strong cocktail at 1.6 standard drinks. Shaken with 30ml rum light white and 30ml curacao blue with 15ml cranberry juice white as well as 15ml lychee juice including 100ml ice and best at tea time. Just put ice cubes into shaker then add all ingredients to shaker and shake the hell out of it. Julep strain into glass and served in a saucer glass cold.