1 lb. chopped fresh or frozen rhubarb
1 c. water
1/3 c. sugar
1 c. apple juice
1 (6 oz.) can frozen pink lemonade concentrate, thawed
1 (1 liter) bottle lemon-lime carbonated beverage

In large saucepan combine rhubarb, water and sugar. Bring to boiling; reduce heat. Cover and simmer 5 minutes or until rhubarb is tender. Cool slightly. In a blender or food processor blend half of the mixture covered until smooth; pour into a medium bowl. Repeat with remaining mixture. Stir in apple juice and lemonade concentrate. Pour into a 8 x 8 x 2 inch baking pan. Cover and freeze several hours until firm. Let stand at room temperature for 45 minutes before serving. To serve, scoop about 1/3 cup of the rhubarb mixture into each glass; fill each glass with about 1/3 cup of carbonated beverage. Makes 12 servings.