In food processor or blender, combine all ingredients except ice. Cover and blend on high speed. With machine running, drop in ice, one cube at a time. Blend about 10 seconds or until thick and frothy. To serve, pour into glasses. Per serving: About 60 cal, 2 g pro, 13 g car, 0 g fat, 0% cal from fat, 1 mg chol, 19 mg sod.