Raspberry Lemonade

2 cans (12 oz each) frozen lemonade concentrate, thawed
2 packages (10 oz each) frozen sweetened raspberries, partially thawed
2 to 4 tablespoons sugar
2 liters club soda, chilled ice cubes
In a blender, combine lemonade concentrate, raspberries and sugar. Cover and process until blended. Strain to remove seeds. In a 4- ½ qt. container, combine raspberry mixture, club soda and ice cubes; mix well. Serve immediately.