1 pkg. funfetti cake mix
1 cup boiling water
1 pkg. (4-serving size) JELL-O Orange Flavor Gelatin
1/2 cup cold water
1 tub (8 oz.) COOL WHIP Whipped Topping, thawed
Prepare cake batter and bake as directed on package for 13x9-inch baking pan. Cool cake in pan 15 min. Pierce cake with large fork at 1/2-inch intervals.
Stir boiling water into dry gelatin mix in small bowl 2 min. until completely dissolved. Stir in cold water; carefully pour over cake. Refrigerate 3 hours.
Frost cake with whipped topping. Refrigerate at least 1 hour before serving. Store leftovers in refrigerator.