Banana Pudding Dump Cake: Best Foolproof Recipe for Creamy Layers

Easy Banana Pudding Dump Cake with Vanilla Wafers

Banana pudding dump cake combines the soft vanilla wafers, ripe bananas, and creamy pudding of a Southern-style banana pudding with a golden cake-mix topping. It is assembled directly in a 9-by-13-inch baking dish, so there is no cake batter to mix and no separate filling to cook.

This version uses prepared instant pudding beneath the dry cake mix. After baking, the dessert needs time to cool and chill. The pudding firms as it cools, the wafers soften, and the buttery topping settles into a spoonable crust. Whipped cream and fresh banana slices are added only after chilling.

Choosing the Ingredients

Use instant pudding mix, not cook-and-serve pudding. Either vanilla or banana pudding works. Vanilla gives the dessert a more traditional banana pudding flavor because the fruit remains prominent. Banana pudding mix produces a stronger, sweeter banana flavor.

The bananas should be ripe but still firm enough to slice cleanly. Fruit covered with small brown freckles is suitable. Avoid heavily blackened, very soft bananas, which can release too much liquid and become nearly indistinguishable from the pudding during baking.

Yellow cake mix adds a richer flavor, while white cake mix keeps the vanilla profile lighter. This easy banana dump cake recipe calls for 9 ounces of dry cake mix, measured from a larger package if necessary. Using an entire 15.25-ounce box with only 6 tablespoons of butter may leave broad patches of dry powder on top.

Vanilla wafers form the base. They will not remain crisp after baking and chilling. Instead, they absorb moisture from the pudding and develop the tender, cake-like texture associated with classic banana pudding.

Banana Pudding Dump Cake Recipe

Yield: 12 to 15 servings
Preparation time: 20 minutes
Cooking time: 45 to 55 minutes
Cooling and chilling time: At least 2 hours 30 minutes
Total time: About 3 hours 45 minutes
Course: Dessert
Cuisine: American

Equipment

• 9-by-13-inch baking dish
• Large mixing bowl
• Whisk
• Rubber spatula
• Wire cooling rack
• Electric mixer, if making whipped cream

Banana Pudding Dump Cake Ingredients

For the cake

• Nonstick cooking spray
• 2 packages (3.4 ounces or 96 grams each) instant vanilla or banana pudding mix
• 3 1/2 cups (830 milliliters) cold milk
• 6 medium ripe bananas, peeled and sliced
• About 35 vanilla wafers
• 9 ounces (255 grams) dry yellow or white cake mix
• 6 tablespoons (85 grams) unsalted butter, cut into numerous thin pieces

For the topping

• 1 cup (240 milliliters) cold heavy cream
• 1 tablespoon granulated sugar
• 1/2 teaspoon vanilla extract
• Extra vanilla wafers, crushed
• 1 banana, sliced just before serving

A thawed 8-ounce tub of whipped topping may replace the heavy cream, sugar, and vanilla.

How to Assemble and Bake the Cake

1. Prepare the baking dish

Heat the oven to 350°F (175°C). Lightly coat the bottom and sides of a 9-by-13-inch baking dish with cooking spray.

Arrange the vanilla wafers in a single layer across the bottom. Small gaps are fine. Break a few wafers if needed to cover exposed areas near the edges.

2. Make the banana pudding layer

Place both packages of instant pudding mix in a large bowl. Add the cold milk and whisk for 2 to 3 minutes, until the mixture begins to thicken.

The recipe uses less milk than the amount commonly specified for two pudding packages. That is intentional. A thicker pudding mixture gives the baked dessert enough structure to be served after chilling.

Fold the six sliced bananas gently into the pudding. Pour the mixture over the wafers and spread it to the edges of the dish.

3. Add the cake mix and butter

Sprinkle the dry cake mix evenly over the pudding. Break up any large lumps with your fingers before adding it. Do not stir the cake mix into the pudding.

Cover the surface with small, thin pieces of butter. Distribution matters more than the shape of the pieces. Large uncovered areas of cake mix can remain powdery after baking, so place the butter closely and evenly across the top, including near the corners.

4. Bake until browned and bubbling

Bake for 45 to 55 minutes. The banana pudding dump cake is ready when the top is golden, the edges are bubbling, and no large patches of loose cake-mix powder remain.

A few pale or crumbly areas are normal. If a large dry patch is visible late in baking, place a small piece of butter over it and return the dish to the oven for several minutes.

Set the baking dish on a wire rack and let it cool for about 30 minutes. The filling will be very soft while hot.

Chill Before Adding the Cream

Refrigerate the partially cooled cake for at least 2 hours. Cover it once it is no longer releasing visible steam. For cleaner portions and a firmer pudding layer, chill it for 4 hours or overnight.

Do not spread whipped cream over a warm cake. Heat will melt the cream and may create a watery layer on the surface.

To make the topping, beat the cold heavy cream, sugar, and vanilla with an electric mixer until stiff peaks form. Stop when the cream holds its shape. Continued beating can make it grainy and eventually turn it into butter.

Spread the whipped cream over the chilled banana cream dump cake. Add crushed vanilla wafers shortly before serving so they retain some texture. Fresh banana slices should also be added at the last minute because their cut surfaces darken during storage.

Serving and Texture

This dessert is softer than a conventional sheet cake. Use a large serving spoon or a flexible spatula rather than expecting sharply defined squares. The bottom wafers become tender, the center resembles baked banana pudding, and the top provides a buttery cake-mix crumb.

Serve it cold for the firmest texture. It can also sit at room temperature briefly before serving, but the whipped topping and pudding should not remain unrefrigerated for more than two hours. In very warm conditions above 90°F (32°C), limit that time to one hour.

For a banana cream pie dump cake effect, add a little more whipped cream to each serving and finish it with wafer crumbs. Avoid adding extra pudding or milk, which can make the center too loose.

Useful Substitutions

The recipe tolerates a few straightforward changes:

• Vanilla pudding: Produces a familiar banana pudding flavor and lets the fresh bananas stand out.
• Banana pudding: Gives the dessert a more concentrated banana flavor.
• White cake mix: Creates a lighter vanilla topping.
• Yellow cake mix: Adds a richer, slightly buttery taste.
• Whipped topping: Saves preparation time and generally holds its shape longer than homemade whipped cream.
• Shortbread cookies: Can replace vanilla wafers, though they produce a richer and somewhat denser base.

Plant-based milk may not thicken every brand of instant pudding reliably. Results depend on the pudding formulation and the milk used, so dairy milk is the more predictable choice for this particular instant banana pudding dessert.

Storage

Cover the baking dish and refrigerate leftovers promptly. The banana pudding cake is best within two to three days. It remains safe longer when properly refrigerated, but the bananas will darken and the topping will gradually release moisture.

For better appearance, store extra banana slices separately and cut fresh ones for each serving. The cake should not be reheated after the whipped cream has been added. If a warm serving is preferred, set aside a portion before topping, heat it gently, and add cream afterward.

Freezing is not recommended. Pudding and whipped cream can separate after thawing, while the bananas may become watery and overly soft. This banana pudding dump cake is most successful when baked, thoroughly chilled, and served fresh from the refrigerator.