1 little tub (Crystal Light) lemonade mix sugar free
3 c. cold water
4 tbsp. (rounded) cornstarch

Dissolve 1 little tub lemonade mix (only Crystal Light mix) in cold water (1 cup) stir in cornstarch. Mix well. Add other 2 cups water. Cook until thickened. Pour into baked crust, graham or regular pastry. Top with whipped topping or meringue.