Rum Fizz is very enjoyable average cocktail at 1.5 standard drinks. Shaken with 60ml rum liqueur rumona and 10ml demerara syrup with 60ml lemon juice as well as 30ml soda water including 290ml ice and best with lunch. Just fill glass with ice to chill then add rest of ice to shaker and add all ingredients to shaker. Shake well and strain into glass and top with soda and served in a highball glass cold.