There is something deeply comforting about banana pudding. It is nostalgic, unfussy, and quietly powerful. But this Banana Pudding Sheet Cake takes that familiar Southern dessert energy and bakes it into something just structured enough to feel impressive, without losing its soft, spoonable charm.
This is the dessert you bring when you want people to ask for the recipe but also secretly hope they assume it was more work than it actually was. A fluffy yellow cake studded with crushed vanilla wafers becomes the base, topped with a creamy pudding layer, fresh bananas, and a cloud of whipped topping. It slices cleanly, travels well, and disappears fast. Potluck hero behavior.
Why You’ll Love This Recipe
- Crowd-proof dessert that feeds a lot of people without looking like it tried too hard
- Classic banana pudding flavor with better structure and easier serving
- Box mix glow-up that feels intentional, not apologetic
- Make-ahead friendly, which is essential if life is already loud
- Kid-approved and adult-nostalgic, the rare dessert sweet spot
This banana pudding sheet cake is especially good for gatherings, holidays, and any situation where forks outnumber plates.
Tips, Tricks, and Variations
Crushing the vanilla wafers directly into the cake batter is the quiet genius here. They soften as the cake bakes, adding flavor without turning gummy. For the pudding layer, instant pudding works best for clean slices and stability. Homemade pudding is lovely, but this is not the place to complicate things.
If you are worried about banana browning, brush the slices lightly with lemon juice or layer them just before serving. You can also fold a little whipped topping into the pudding for a lighter, mousse-like middle.
Want to dress it up? Add a thin layer of caramel sauce over the pudding, or finish with toasted wafer crumbs for extra texture. For a shortcut version, skip the banana garnish on top and let the flavor live inside.
This cake keeps well in the fridge for up to two days, covered. It actually gets better after a few hours, once everything settles and chills.
Serving and Pairings
Serve cold, straight from the fridge, with strong coffee or iced sweet tea. It is also excellent with a scoop of vanilla ice cream if you are leaning fully into dessert table abundance. This is a cut-and-serve situation, not a delicate plating moment, and that is part of the charm.
FAQ
Can I make banana pudding sheet cake ahead of time?
Yes. In fact, it is better that way. Assemble the full cake and chill for at least one hour, or up to 24 hours, before serving. The layers set nicely and the flavor improves.
How do I keep bananas from turning brown?
Lightly brushing banana slices with lemon juice helps, but the best option is to layer them under the whipped topping where they are protected from air.
Can I use homemade whipped cream instead of whipped topping?
You can, but stabilize it with a bit of powdered sugar or gelatin. Whipped topping holds up better for parties and travel.

Banana Pudding Sheet Cake
Ingredients
Cake Base
- 1 box yellow cake mix plus ingredients listed on box: eggs, oil, water
- 2 cups crushed vanilla wafers about 1 sleeve
Pudding Layer
- 2 3.4 oz boxes instant vanilla pudding mix
- 4 cups cold milk
- 2 ripe bananas sliced
Whipped Topping
- 1 8 oz container whipped topping, thawed
- 1/2 cup crushed vanilla wafers for garnish
- Banana slices for garnish (optional)
Instructions
- Preheat oven to 350°F (175°C). Grease a 9×13-inch baking pan.
- Prepare yellow cake mix according to package directions. Stir in 2 cups crushed vanilla wafers.
- Pour batter into prepared pan and bake 28–32 minutes, or until a toothpick inserted in the center comes out clean. Let cool completely.
- In a large bowl, whisk together pudding mix and milk until thickened. Spread over cooled cake.
- Arrange sliced bananas evenly over the pudding layer.
- Spread whipped topping over the bananas. Garnish with crushed vanilla wafers and extra banana slices, if desired.
- Chill at least 1 hour before serving for best flavor.