Ingredients:- 2 cups fresh strawberries, hulled and quartered- 2 cups fresh rhubarb, chopped- 1/2 cup sugar- 2 tablespoons fresh lemon juice- 2 cups sparkling water- 2 tablespoons vodka (optional)Instructions:1. In a medium saucepan, combine the strawberries, rhubarb, sugar, and lemon juice. Cook over medium heat, stirring occasionally, until the mixture is thick and syrupy, about 10 minutes.2. Strain the mixture through a fine-mesh sieve into a bowl, pressing down on the solids to extract as much liquid as possible. Discard the solids.3.