1In a medium bowl, stir boiling water into gelatine powder for at least 2 minutes until completely dissolved.
Add enough ice cubes to cold water to measure 1 cup.
2Add to Jell-O until slightly thickened.Remove any unmelted ice. Add yogurt and vanilla, stir until well blended. Pour evenly into 4 dessert dishes.
refrigerate 30 minutes or until firm. Put whipped cream or fat-free cool whip top before serving.