Comfortable Sour is zesty quite strong cocktail at 1.4 standard drinks. Shaken with 45ml whiskey southern comfort black and 30ml lemon juice with 15ml sugar syrup as well as 100ml ice and best at tea time. Just add half the ice to shaker then add all ingredients to shaker and shake well. Pour all into glass and fill glass with ice and garnish with lemon zest twist and served in a old fashioned glass cold.