Lemonade Jell-O

2 (3 ounce) packages lemon Jell-O
2 1/4 cups boiling water
1 (6 ounce) can frozen lemonade
1 (9 ounce) container Cool Whip

In a bowl add Jell-O, boiling water and lemonade; mix well. Refrigerate until partially set or about 1 1/2 hours.

Beat in Cool Whip. Pour into a 13 x 9-inch dish and refrigerate.