Ingredients
Equipment
Method
- Build the syrup baseCombine the superfine sugar, water, fresh blueberries, and 1 teaspoon of lemon zest in a medium saucepan. The zest added at this stage infuses the syrup with citrus oil during the simmer and produces a more complex flavor than lemon juice alone achieves.
- Simmer until the berries burstBring the mixture to a boil over medium heat, then reduce to a simmer and cook for 10 minutes. Press any stubborn berries against the side of the pan with the back of a spoon to release their juice. The syrup turns deep purple and coats the spoon lightly when ready.
- Strain and cool completelyPour the hot syrup through a fine-mesh sieve into a heat-safe bowl or jar. Press the solids gently to extract every drop of liquid. Discard the skins. Let the syrup cool to room temperature, then refrigerate until fully cold before building the drink. Hot syrup poured directly over ice melts the entire cup instantly and dilutes the batch.
- Juice the lemonsSqueeze the lemons until you reach exactly 1 cup of fresh juice. A small splash of water makes up any shortfall if the lemons run dry.
- Mix the baseIn a large pitcher, stir the cooled blueberry syrup and fresh lemon juice together over the ice cubes. Taste the base at this point and adjust with a tablespoon of extra syrup if the lemons ran very tart.
- Add the sparkling water lastPour in all 3 cups of sparkling water immediately before serving and stir once gently. Over-stirring knocks the carbonation out of the water. Serve over additional ice in tall glasses.
