Dark and Stormy with Kaffir and Lemongrass
Place kaffir lime leaf and lemongrass in a cocktail shaker. Add lime juice and Ginger Syrup; muddle until fragrant.
Add ice and rum to shaker. Shake for 15 seconds. Pour into chilled copper mug or glass. Add sparkling water and a slice of lime. Stir and serve with a lemongrass stock.