01 -
Place sliced rhubarb and sugar in a non-reactive saucepan. Add water and stir until combined.
02 -
Bring the mixture to a boil over medium heat, then reduce to a gentle boil. Cook for approximately 8 minutes, or until rhubarb becomes very soft and releases its colour and flavour.
03 -
Allow the mixture to cool to room temperature. Strain through a fine mesh sieve, jelly bag, or cheesecloth, pressing gently to extract as much liquid as possible.
04 -
Refrigerate the rhubarb syrup until thoroughly chilled.
05 -
Pour approximately 80 ml chilled rhubarb syrup into a glass. Top with 160 ml sparkling water and add ice as desired.