In a small bowl, whisk together the Juven, water and half-and-half. Pour into a blender or a food processor. Add the remaining ingredients and blend until smooth.
Pour mixture into a shallow bowl and freeze for 3 hours. Remove from freezer. Using a fork, mash the crystals that have formed. Return the mixture to the freezer for 2 to 3 more hours or until almost solid. Scoop and serve.