Prepare rosemary syrup by bringing one cup of water, 4 rosemary sprigs, and ½ cup of sugar to a boil
Let the syrup simmer for 15 minutes
Strain the syrup and store in the fridge for up to 5 days
In a shaker, combine gin, elderflower liqueur, rosemary syrup, fresh squeezed lime juice, and white cranberry juice
Shake with ice for 10 seconds
Strain into a Collins glass with fresh ice
Top with soda water
Garnish with a rosemary sprig and two dried lime wheels
