Snow Tunnel Cake
["1 box Duncan Hines Deluxe angel food cake mix", "1 (12 oz.) container Cool Whip", "1 1/2 c. milk", "1 (4 1/2 oz.) pkg. chocolate instant pudding mix (Jell-O)"]
["Bake cake as directed. Slice 1-inch layer off the top.", "Gently hollow out a trench in the cake, 1 1/2-inches deep.", "Tear cake pieces from trench into small pieces.", "Combine milk and pudding mix. Fold cake pieces and 1 3/4 cups topping into pudding mix. Fill trench with mixture.", "Replace top of cake. Spread remaining topping over sides and top. Chill until set.", "Serves 6 to 8 people.", "Keep stored in refrigerator."]
["cake mix", "milk", "chocolate instant pudding"]