Samuel is scrumptious above average cocktail at 1 standard drinks. Built with 30ml pisco tres erres and 15ml grapefruit juice with 45ml cola soda as well as 100ml ice and best with morning tea snacks. Just place ice into glass then add shot of pisco to glass and pour in grapfruit juice. Top glass with cola soda and granish with three red grapes and served in a old fashioned glass cold.