
This golden, fruity dessert basically whips itself up - that's what makes this Pineapple Dump Cake with Condensed Milk so amazing. When sweet tropical pineapple meets buttery cake mix and creamy condensed milk, you get an incredible treat that looks like kitchen wizardry but needs almost no hands-on time.
I brought this to an unplanned block party last weekend, and folks scraped the dish clean in minutes flat. Even people who usually say they don't care for pineapple couldn't stop themselves from grabbing more.
Key Ingredients and Smart Selection Tips
- Crushed Pineapple: Grab cans with pineapple in juice instead of syrup for better flavor balance. The juice plays a big role in how your cake turns out
- Yellow Cake Mix: The classic yellow mix gives you that rich, vanilla-buttery taste. Its protein makeup helps create the perfect crust
- Butter: Go with unsalted butter, just melted but not hot. This makes sure it spreads evenly throughout
- Sweetened Condensed Milk: Stick with full-fat for the best browning and texture. Give the can a good shake before opening
- Shredded Coconut: Unsweetened works better for controlling sweetness. Try lightly toasting it first for extra flavor punch
Step-by-Step Baking Guide
- First: Getting Your Pan Ready
- Pick a deep 9x13 baking dish - glass or ceramic works better for even heating. The butter means you don't need to grease it, but a light spray helps with serving. Make sure your oven rack sits right in the middle for best heat flow.
- Second: Setting Up Your Pineapple Base
- Dump both cans of crushed pineapple with all their juice into the pan and spread it out evenly. Use a spatula to push fruit into all the corners. This bottom layer keeps everything moist and flavor-packed as it bakes.
- Third: Creating Your Layers
- Gently sprinkle dry cake mix over the pineapple in an even layer. Don't dump it all in one spot - think of it like sprinkling snow. Then pour condensed milk in a zigzag pattern to cover as much surface as you can.
- Fourth: Finishing Touches
- Pour melted butter all over the top, making sure to hit any dry patches. The butter is what gives you that amazing golden crust. Then scatter coconut evenly across everything to create a layer that'll toast up beautifully.
- Fifth: Baking It Up
- Bake in a 350°F oven that's already hot. You'll notice golden browning around 35 minutes, but it'll need 45-50 minutes total. The top should look evenly browned and feel slightly crisp when done.

What's Actually Happening
The real magic happens when cake mix soaks up both pineapple juice and condensed milk, creating different texture zones. The bottom gets pudding-soft while the top turns buttery and crisp. This mix of textures makes every bite interesting.
Keeping It Fresh
When covered, this cake stays good on your counter for 2 days. In the fridge, it'll last up to 5 days, though the top won't be as crispy. You can freeze single portions for up to 3 months - just warm them in a 300°F oven before eating.
How To Serve It Right
Enjoy it warm for ultimate comfort or at room temp for cleaner slices. Try topping it with:
- Vanilla bean ice cream
- Freshly whipped cream
- Additional toasted coconut
- Caramel sauce drizzle
Fixing Common Problems
If the top gets too brown too fast, cover it loosely with foil. Want extra crunch? Broil for the last 2 minutes but watch it closely. Seeing dry spots during baking? Just add a bit more melted butter where needed.
When I was little, my grandma would fix this cake whenever tropical fruit went on sale. She'd add a splash of dark rum to the pineapple - a grown-up twist I still like to make for special get-togethers.
This Pineapple Dump Cake shows why casual baking can be so great - it's hard to mess up, totally flexible, and always tastes amazing. It works just as well at a potluck as it does for family dessert night. With its crispy top, fruity middle, and overall simplicity, you'll find yourself making this again and again.

Frequently Asked Questions
- → What makes it a dump cake?
- You don't need to mix - just layer everything in the dish and bake!
- → Can it be cooked in a slow cooker?
- Yes, you can try it in a slow cooker, but the texture might turn out a bit different.
- → Why is butter used?
- Butter helps create the golden, crisp topping that makes this cake irresistible.
- → Can fresh pineapple be substituted?
- Canned pineapple is better for this because it includes the juice needed for the perfect texture.
- → How should leftovers be kept?
- Cover it and leave it on the counter for up to 2 days, or refrigerate for about 5 days.