Ingredients

  • cooking spray
  • 1 (15.25 ounce) package yellow cake mix
  • 1 cup water
  • 3 large eggs
  • 1/3 cup vegetable oil
  • 4 cups milk
  • 2 (3.5 ounce) packages instant banana pudding mix
  • 1 (8 ounce) container frozen whipped topping (such as Cool Whip(R)), thawed
  • 20 vanilla wafers, crushed

Method

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