Rainbow in a Cloud

1 (3 ounce) box Jell-O, any flavor
1 cup boiling water
1/2 cup cold water
1 (4 ounce) container Cool Whip, thawed

Dissolve gelatin in boiling water. Add cold water and pour into an 8-inch square pan. Chill until firm, at least 3 hours.

Cut gelatin into cubes. Spoon about 1/3 cup of the topping into each of 6 dessert glasses. Using back of spoon, make a depression in center of each and spread topping up side of glass. Spoon gelatin cubes into topping-lined glasses and chill.