Rhubarb Soda from http://www.culinate.com/recipes/collections/Culinate+Kitchen/Beverages/rhubarb_soda
1½ cups rhubarb, roughly chopped 1 cup sugar 1½ cups water ~ Sparkling water ~ Ice
1. Place rhubarb, sugar, and 1½ cups of water in a saucepan. Bring to a boil, then turn down to a simmer. Cook for about 15 minutes, until the syrup is bright pink. Turn off the heat and allow to cool. Strain syrup into a large jar.
2. To make each soda, measure ¼ cup rhubarb syrup into a glass. Add enough sparkling water to fill the glass ⅔ full. Stir to mix, then add ice.