1cupvanilla wafer crumbssuch as Nilla, or to taste
Instructions
Preheat oven to 350 degrees F. Grease and flour a 9x13-inch baking dish.
Whisk cake mix, water, vegetable oil, and eggs together in a bowl until smooth; pour into the prepared baking dish.
Bake in the preheated oven until a toothpick inserted in the center of the cake comes out clean, 23 to 28 minutes.
Whisk cold milk and pudding mix together in a bowl until pudding is soft and thickened, about 2 minutes.
Poke holes into the cake using the handle of a clean wooden spoon. Pour pudding over cake, spreading evenly. Spread whipped topping over pudding layer and sprinkle vanilla wafers over whipped topping.