In a medium-sized heavy-bottomed pot, combine water, the Redpath® Dark Brown Sugar, blueberries, and lime zest. Place pot over medium-high heat and bring to a boil. Stir to dissolve sugar. Reduce heat and simmer until blueberries begin to burst; about 5 minutes. Remove from heat and allow to cool to room temperature. Once cool, strain through a sieve.
Don’t press on solids as this may make your syrup cloudy. Place syrup into an airtight container and store in the refrigerator until ready to use. Syrup can be kept in the fridge for up to a week.