- 1 (18.25 ounce) package yellow cake mix
- 2 cups boiling water
- 2 pkg. (4 serving size) JELL-O Brand Berry Blue Flavor Gelatin
- 1 cup cold water
- 1 (8 ounce) tub COOL WHIP Whipped Topping, thawed
- 56 OREO Mini Bite Size Chocolate Sandwich Cookies
- 6 TEDDY GRAHAMS Graham Snacks
- 5 ring-shaped chewy fruit snacks
- 4 bite-size fish-shaped chewy fruit snacks
- Prepare and bake cake mix in 13×9-inch baking pan as directed on package. Cool completely. Invert cake onto large platter; remove pan. Using a serrated knife, cut and scoop out a shallow rectangle from center of cake, leaving a 2-inch border of cake on all sides and a thin layer of cake on the bottom. Reserve removed cake for snacking or other use.
- Stir boiling water into dry gelatin mix in large bowl at least 2 min. until completely dissolved. Stir in cold water. Refrigerate 1-1/4 hours or until slightly thickened (consistency of unbeaten egg whites). (Or, see Tip below for quicker set method.) Pour thickened gelatin into center of cake. Refrigerate 3 hours or until set.
- Frost borders of cake with whipped topping. Decorate with remaining ingredients as desired to resemble a swimming pool. Store leftover cake in refrigerator.