1 pkg. (8-inch-square-size) brownie mix
2 cups cold milk
2 pkg. (4-serving size each) OREO Cookies 'n Creme Flavor Instant Pudding
1 tub (8 oz.) COOL WHIP Whipped Topping, thawed, divided
Preheat oven to 350F. Prepare brownie mix as directed on package. Pour into greased 9-inch pie plate. Bake 35 minutes or until toothpick inserted in center comes out clean. Cool completely on wire rack. Scoop out center of brownie with spoon, leaving a 1-inch crust around edge and thin layer of brownie on bottom. Reserve removed brownie pieces. Pour milk into large bowl. Add dry pudding mixes. Beat with wire whisk 2 minutes. (Mixture will be thick.) Stir in half of the whipped topping and all but 1/4 cup of the reserved brownie pieces. Spoon into brownie crust; top with remaining whipped topping and remaining brownie pieces. Refrigerate 2 hours or until set. Store leftover dessert in refrigerator.