Boston Cooler is thirst quenching light cocktail at 1.1 standard drinks. Built with 30ml gin and 15ml creme de menthe with 15ml lemon juice as well as 15ml sugar syrup including 215ml syphon seltzer also 50ml ice and good to have with brunch. Just add ice to shaker then pour in gin liqueur leon and syrup and shake well. Hawthorne strain into glass and top glass with soda water and served in a highball glass cold.