Warm Chocolate Pudding Cake

This is amazing! It's soooo easy and good hot or cold the next day. 

1 pkg. (2-layer size) devil's food chocolate cake mix

2 cups cold milk
1-1/4 cups water
2 pkg. (3.9 oz. each) Chocolate Instant Pudding
1/3 cup sugar
2 cups thawed Cool Whip

Heat oven to 350°F. Prepare cake batter as directed on package. Pour into greased 13x9-inch baking dish; set aside.

Pour milk and water into large bowl. Add pudding mixes and sugar. Beat with whisk 2 min. or until blended. Pour over batter.

Put baking dish on baking sheet to catch any sauce that bubbles over sides of dish as dessert bakes. Bake 55 min. to 1 hour or until toothpick inserted in center of cake layer comes out clean. Cool 20 min. (Sauce will thicken slightly as it cools). Spoon into serving dishes; top with Cool Whip.