Rosemary syrup a lovely refreshing drink By Guest Contributor May 14, 2011 Drinks Preparation Time Cook Time Servings0Ingredients3 sprigs of fresh rosemary400g caster sugar600ml waterInstructions Step 1: heat the water and sugar in the pan and leave to simmer. wash the rosemary sprigs, and add/ leave for 15-20 minutes to infuse, then strain through a sieve into a bottle. Step 2: dilute and serve over ice.