Banana Split Dump Cake – The 5‑Ingredient Dessert That Tastes Like a Classic Sundae

This banana split dump cake has all the flavors of your favorite sundae – bananas, pineapple, cherries, chocolate, and a buttery cake topping. No mixing, no fuss. Ready in under an hour.

Let’s be honest: banana splits are one of those desserts that feel like a celebration. A scoop of vanilla ice cream, a split banana, pineapple chunks, chocolate syrup, whipped cream, and that cherry on top – it’s pure joy in a dish. But sometimes you want those same nostalgic flavors in a warm, shareable, no‑fuss dessert. Something you can bring to a potluck, serve at a birthday party, or just make on a lazy Sunday afternoon.

Enter the banana split dump cake.

This genius dessert takes all the classic banana split components – ripe bananas, crushed pineapple, maraschino cherries, and chocolate – and layers them under a buttery, golden cake topping. You “dump” everything into a baking dish (no mixing, no fancy techniques), and the oven does the rest. The result is a bubbly, fruity, chocolatey, cake‑topped masterpiece that tastes like a banana split in casserole form.

Serve it warm with a scoop of vanilla ice cream, and you’ve got a dessert that will disappear faster than you can say “sundae.”

In this guide, I’ll walk you through the complete recipe, share pro tips for the best texture, offer delicious variations (add nuts, coconut, or caramel), and answer all your questions about storage, freezing, and serving.

Let’s make a dump cake that’s anything but dumpy.

Why You’ll Love This Banana Split Dump Cake

✔ Only 5–6 ingredients ✔ No mixing bowl to clean
✔ Ready in under an hour ✔ Feeds a crowd (12–16 servings)
✔ Tastes like a banana split ✔ Perfect for potlucks, holidays, and birthdays
✔ Kid‑friendly to make ✔ Freezer‑friendly
✔ Endlessly customizable ✔ Budget‑friendly

This recipe has become my go‑to for last‑minute desserts. It’s so easy that my kids can make it themselves, and it always gets rave reviews.

Ingredient Breakdown – Why Each One Matters

🍌 1. Ripe Bananas (4 medium)

Role: The sweet, creamy, fruity base. Ripe bananas (with brown spots) are sweeter and softer, mashing easily into the bottom layer.
Pro tip: Don’t use overripe (black) bananas – they can be too mushy and fermented.

🍍 2. Crushed Pineapple (1 can, 20 oz, with juice)

Role: Tropical sweetness and moisture. The juice helps create a saucy bottom layer that bubbles up through the cake.
Do not drain – the juice is essential.

🍒 3. Maraschino Cherries (½ cup, halved, plus extra for topping)

Role: That classic banana split cherry flavor and pop of color.
Pro tip: Pat them dry slightly with a paper towel to prevent excess liquid.

🍫 4. Semi‑Sweet Chocolate Chips (½ – ¾ cup)

Role: The chocolate “syrup” element. The chips melt into pockets of gooey chocolate throughout the cake.
Substitution: Milk chocolate or dark chocolate.

🥮 5. Yellow Cake Mix (1 box, 15.25 oz)

Role: The buttery, golden topping. Use a standard yellow or butter recipe cake mix. Do not prepare according to package directions – use it dry.
Substitution: White cake mix or vanilla cake mix work.

🧈 6. Unsalted Butter (¾ cup, 1½ sticks, melted)

Role: The fat that turns the dry cake mix into a crisp, golden, cookie‑like topping.
Why melted: You pour it over the dry mix – no cutting in, no mixing.

🍦 Optional Toppings (For Serving)

· Vanilla ice cream
· Whipped cream
· Additional maraschino cherries
· Chopped nuts (walnuts or pecans)
· Chocolate syrup drizzle

The Recipe – Banana Split Dump Cake

Prep time: 10 minutes
Bake time: 40–45 minutes
Total time: 50–55 minutes
Yield: 12–16 servings

Ingredients

Ingredient Amount Notes
Ripe bananas 4 medium Sliced or mashed
Crushed pineapple (with juice) 1 can (20 oz) Do not drain
Maraschino cherries ½ cup Halved, plus extra for topping
Semi‑sweet chocolate chips ½ – ¾ cup
Yellow cake mix 1 box (15.25 oz) Dry, unprepared
Unsalted butter ¾ cup (1½ sticks) Melted
Optional: chopped pecans or walnuts ½ cup Sprinkle on top

Equipment

· 9×13 inch baking dish
· Parchment paper (optional, for easy cleanup)
· Spatula

Step‑by‑Step Instructions

Step 1: Preheat and Prepare

Preheat your oven to 350°F (175°C). Lightly grease a 9×13 baking dish or line with parchment paper.

Step 2: Layer the Fruit

Slice the bananas into ¼‑inch rounds and arrange them in an even layer on the bottom of the dish. Sprinkle the crushed pineapple (with its juice) evenly over the bananas. Scatter the halved maraschino cherries over the pineapple. Sprinkle the chocolate chips evenly over the fruit.

Step 3: Add the Cake Mix

Sprinkle the dry yellow cake mix evenly over the fruit and chocolate chips. Use a spatula to gently spread it into an even layer – do not stir or mix into the fruit.

Step 4: Pour the Butter

Pour the melted butter evenly over the dry cake mix. Tilt the dish to ensure coverage, but do not stir. The butter will soak into the cake mix as it bakes, creating a crispy, golden topping.

Step 5: Optional – Add Nuts

Sprinkle chopped pecans or walnuts over the top for extra crunch.

Step 6: Bake

Bake for 40–45 minutes, until the topping is golden brown and the fruit is bubbly around the edges. A toothpick inserted into the topping should come out clean (the fruit layer will be saucy).

Step 7: Cool Slightly and Serve

Let the dump cake cool for 10–15 minutes before serving. Serve warm, topped with vanilla ice cream, whipped cream, and an extra cherry.

Pro Tips for the Perfect Banana Split Dump Cake

1. Use Ripe but Not Overripe Bananas

Bananas with brown spots are perfect – sweet and soft. Avoid black, mushy bananas.

2. Don’t Drain the Pineapple

The juice is essential for creating the saucy bottom layer. Without it, the cake will be dry.

3. Spread the Cake Mix Evenly

Lumps of dry mix will not cook properly. Use your fingers or a spatula to create an even layer.

4. Pour Butter Evenly

Try to cover as much of the dry cake mix as possible. If you have bare spots, the topping may be dry.

5. Let It Rest Before Serving

The fruit layer is very hot and runny straight from the oven. Ten minutes of resting allows it to set slightly.

6. Serve with Ice Cream – Non‑Negotiable

Vanilla ice cream is the perfect finishing touch. The hot cake + cold ice cream is pure magic.