Easy Banana Pudding Cake

Directions

1. 1
   Preheat oven to 350 degrees F (175 degrees C).
2. 2
   Spray a 9x13-inch baking dish with cooking spray.
3. 3
   Mix cake mix, water, eggs, and oil in a bowl until just moistened; pour cake batter into prepared baking dish.
4. 4
   Bake in the preheated oven until a toothpick inserted into the center comes out clean, 34 to 38 minutes.
5. 5
   Cool in the baking dish for 2 to 3 minutes.
6. 6
   Poke several holes into the cake using the handle of a wooden spoon.
7. 7
   Be sure to poke all the way through to the bottom of the cake.
8. 8
   Stir milk and pudding mix together in another bowl until smooth.
9. 9
   Let pudding rest until it begins to thicken slightly, but is not fully set, about 2 minutes.
10. 10
    Pour pudding over cake and spread evenly, making sure to fill each hole completely.
11. 11
    Chill cake in the refrigerator until cake is cooled and pudding is set, about 2 hours.
12. 12
    Spread whipped topping over cake and sprinkle with crushed vanilla wafers just before serving.