How to Make It
Process fruit in a food processor until smooth. Strain through a fine-mesh strainer over a bowl, pressing with the back of a spoon. Discard solids. (You should have about 1 cup juice.)
For 1 Soda: Combine 2 tablespoons fruit juice with 1 to 2 tablespoons Simple Syrup (depending on desired sweetness level). Top with 8 ounces club soda.