Carry On London is dainty smooth cocktail at 1.8 standard drinks. Stirred with 30ml gin beefeater and 30ml gin rose beefeater with 30ml lemon juice as well as 100ml tonic soda including 100ml soda water and served before a meal to stimulate appetite. Just add both gins into glass then add the lemon juice and pour in the tonic soda. Stir in the soda water and served in a highball glass cold.