
Whisk the jello mix and boiling water until fully dissolved. Whisk in the cold water.
Fold the cool whip into the jello mixture. until well combined.
Refrigerate pie filling in the bowl for 30 minutes. Then mix again with a rubber spatula.
Transfer the jello mixture to the pie crust and spread so the top is flat.
Chill the pie for at least 6 hours (preferably overnight) before slicing. I like to top each slice with a dollop of whipped cream and lime slice.