01 -
In a non-reactive saucepan, combine chopped rhubarb and sugar. Add water and stir until thoroughly mixed. Bring to a boil over medium heat, then lower the heat and simmer gently for 8 minutes, or until the rhubarb is fully softened.
02 -
Pour the mixture through a jelly bag, cheesecloth, or fine mesh strainer, pressing gently to extract as much liquid as possible. Discard solids.
03 -
Allow the strained syrup to cool to room temperature, then refrigerate until fully chilled.
04 -
To serve, mix chilled rhubarb syrup with sparkling water in a 2:1 ratio. Stir gently.
05 -
Pour mixture over ice in glasses and serve immediately.