Passion Fruit Mojito

Put eight mint leaves, the white rum, the sugar syrup, the lemon juice and the passion fruit in the bottom of a shaker and muddle. Add some ice then shake vigorously until the outside of the shaker is frosted. Put the mixture into a highball glass, add some more ice and top with soda water. Garnish with a sprig of mint and a passion fruit husk, and serve.