
Transform the iconic ice cream sundae into a warm, cozy baked treat with Banana Split Dump Cake. This dessert layers caramelized bananas, tangy pineapple, and plump strawberries under a crisp, buttery top. What makes it so good? The way everything mingles together – fruit juices soaking upward, crunchy cake on top, and all those classic sundae flavors in each bite. Don't worry about making it perfect – this easy-going dessert forgives mistakes while still tasting amazing every time.
The first time I whipped this up was for a backyard cookout when I needed something quick but impressive. My kitchen smelled absolutely heavenly with fruity aromas and buttery goodness. What really got me was watching everyone's reaction with each spoonful – that spark of recognition when familiar childhood flavors showed up in a completely different way. Even my dessert-avoiding brother-in-law grabbed seconds and asked me how to make it.
Delicious Foundation
- Fully ripened bananas: They get even sweeter during baking, turning slightly caramel-like throughout. Go for ones with dark spots for maximum sweetness.
- Ripe strawberries: They add gorgeous color and just enough tang to balance the sweetness. Pick completely red berries with no white tops for best taste.
- Crushed pineapple with juice: Brings tropical zing and needed moisture to the base. Its natural acidity cuts through the richness perfectly.
- Yellow cake mix: Forms that amazing golden, buttery top layer without any fuss. The powder works its magic in the oven.
- Butter: Turns plain cake mix into a crunchy, flavorful crust. Go with unsalted so you can control the flavor balance.
- Heavy whipping cream: Adds cloud-like softness to the dense cake and a gentle dairy sweetness. Its light texture works wonderfully with the fruit bottom.
Building Brilliance
- Bottom Layer Love:
- Cut ripe bananas into uniform circles and place them across your buttered baking dish. They'll turn extra sweet while baking, creating little pockets of gooey goodness throughout. Pour the whole can of pineapple with all its juice right over the bananas, making sure it spreads everywhere so every mouthful has that tropical kick.
- Strawberry Splendor:
- Remove stems and slice fresh strawberries before scattering them on top of the pineapple. They'll get soft but keep their shape during baking, adding bright pops of color and jammy sweetness. Their gentle tartness works wonders with the other sweeter ingredients.
- Mix Magic:
- Gently scatter dry cake mix over everything, creating an even blanket of powder. Don't stir it in. This separation is key to getting those amazing texture differences that make dump cakes so special. The powder will transform as it soaks up fruit juices from below.
- Butter Bliss:
- Drizzle melted butter all across the cake mix, trying to hit as much surface as you can. Any spots missed will stay powdery instead of turning into that yummy crisp top. Take your time here – this step creates the wonderful contrast between juicy fruit base and crunchy topping.
- Oven Transformation:
- Slide your creation into the hot oven and bake until the top turns a beautiful golden color and you see bubbling around the edges. These visual clues tell you the cake mix has soaked up the butter and crisped while the fruits below have released their juices and mingled together.

I've always loved anything banana split flavored because my grandpa would buy me ice cream every weekend after Sunday service. He always picked the traditional banana split and let me sample bits from each section. When I first baked this dump cake version, I called him right away to share how to make it. At 92 years old, he made it himself and told me it was "better than the real thing" – pretty impressive feedback from someone who knows his banana splits!
Tasty Companions
This flexible dessert works in so many situations from casual to fancy. At family meals, serve it slightly warm with a scoop of vanilla ice cream that slowly melts into the cake. When you've got company over, dish it into pretty individual bowls topped with fresh whipped cream and a thin stream of chocolate sauce for extra wow factor. At summer parties, set it up next to different coffee options with flavored creamers that play off the sweet fruit flavors.
Fun Changes
Switch up this basic recipe by trying different fruit combos based on what's in season. Swap strawberries for blueberries or blackberries to get deeper flavors and stunning purple-blue colors. If you're into coconut, sprinkle shredded coconut over the cake mix before adding butter for a tropical twist throughout. Make a chocolate lover's dream by using chocolate cake mix instead of yellow and tucking chocolate chips between the fruit and cake layers for melty chocolate pockets.
Staying Delicious
Keep any leftovers covered in the fridge where they'll stay good for about four days, though the texture will change a bit as it chills. The cake part gets more pudding-like while the fruit flavors grow stronger, making it just as tasty but different. Warm individual servings in the microwave for 20-30 seconds if you want that just-baked feel, or enjoy it cold straight from the fridge for a cool summer treat. If you're planning ahead, you can put everything together except the whipped cream a day early, keep it in the fridge, then bake it right before you need it.
After making countless dump cakes over the years, I really appreciate how flexible and forgiving they are. This banana split version has become what I'm known for at gatherings, with friends and family requesting it for every get-together. There's something special about turning simple ingredients into a dessert that brings such happiness and memories. The mix of warm, fruity bottom with cool, creamy toppings hits that perfect sweet spot of temperatures and textures that makes everyone reach for just a little more.

Recipe FAQs
- → Can I swap fresh fruit for frozen?
- Sure! Go ahead and use thawed frozen strawberries, but fresh bananas are better since frozen ones can turn too mushy. Fresh fruit works best for toppings, both for texture and look.
- → What if I don’t have all the fruits listed?
- This dessert's super adaptable! Skip or swap as needed. Only have bananas and pineapple? That’s fine. Raspberries or cherries instead of strawberries? Works great too!
- → Can this be prepped ahead of time?
- You can bake the base a day early and keep it covered at room temp. Just wait to add the whipped cream and fresh toppings till you're ready to serve, so it looks and tastes best.
- → How can I tell if the cake is done?
- It’s ready when the top turns golden and doesn’t look doughy in the middle. The fruit juices should bubble around the edges. If it browns too fast but isn’t finished, loosely cover it with foil.
- → Can I make this without dairy?
- Absolutely! Replace butter with coconut oil or a plant-based spread. Use a dairy-free cake mix and top with whipped coconut cream for a perfect treat.