8 fresh mint leaves 1/2 ounce freshly squeezed lime juice 1 teaspoon superfine sugar 2 ounces white rum 2-3 ounces seltzer 4-6 fresh raspberries
Place mint leaves, lime juice and sugar in a highball glass (something tall and narrow is perfect). Using the straight end of a wooden spoon, gently press on leaves to release flavor (“muddle” is the official term).
Fill glass with ice cubes. Pour in rum. Top off with seltzer. Drop in raspberries, and sip!