Quick Pumpkin Dump Cake No Mixer, 15 Minutes Prep

This Pumpkin Dump Cake is a custardy pumpkin pie layer baked under a golden, buttery crumble made from dry cake mix and pecans. You stir the filling in one bowl, scatter the topping over it, and let the oven sort out the rest. The edges go crisp and caramelized while the middle stays soft enough to eat with a spoon.

Why You’ll Love This Pumpkin Dump Cake

There is no mixer and no crust. A whisk and a 9×13 pan are the whole equipment list, which makes this one of the few pumpkin desserts you can start after dinner and still serve warm the same night.

It feeds a crowd without doubling. One pan cuts into fifteen generous squares, so it travels well to potlucks and Thanksgiving tables where a nine-inch pie disappears in four minutes.

The texture is the real draw. You get the smooth, spiced custard of pumpkin pie and the crunchy, buttery top of a crisp in the same bite, which is more interesting than either one on its own.

Ingredients You’ll Need For Pumpkin Dump Cake

• 1 can (15 ounces) pumpkin puree — pure pumpkin, not pumpkin pie filling. Pie filling is already sweetened and spiced, and using it will make the cake cloying and loose.
• 1 can (12 ounces) evaporated milk — this is what sets the filling into a sliceable custard. Regular milk has too much water and will leave the center soupy.
• 3 large eggs — bring them to room temperature so they blend into the cold pumpkin without streaking.
• 1 cup granulated sugar — plain white sugar keeps the pumpkin flavor clean. Swap in packed light brown sugar if you want a deeper molasses note.
• 2 teaspoons pumpkin pie spice — or make your own with 1 teaspoon cinnamon, 1/2 teaspoon ginger, 1/4 teaspoon nutmeg, and 1/4 teaspoon allspice.
• 1 teaspoon vanilla extract — rounds out the spice so it tastes warm rather than sharp.
• 1/2 teaspoon salt — easy to skip and genuinely important. Without it the filling tastes flat no matter how much spice you add.
• 1 box (15.25 ounces) yellow cake mix — used completely dry, straight from the box. Do not prepare it according to the package. Spice cake mix works too and doubles down on the warmth.
• 1 cup chopped pecans — they toast in the oven as the cake bakes. Walnuts work, and you can leave nuts out entirely for a nut-free version.
• 3/4 cup (1 1/2 sticks) unsalted butter, melted — this is what turns the dry mix into a crumble instead of a powdery layer. Drizzle it evenly and slowly.

How to Make Pumpkin Dump Cake

1. Heat the oven to 350°F and grease a 9×13-inch baking dish with butter or nonstick spray, including the corners.
2. Whisk the 15-ounce can of pumpkin puree, the 12-ounce can of evaporated milk, 3 eggs, 1 cup sugar, 2 teaspoons pumpkin pie spice, 1 teaspoon vanilla, and 1/2 teaspoon salt in a large bowl until completely smooth, about 1 minute. There should be no streaks of egg left.
3. Pour the filling into the prepared dish and tilt it gently so the surface is level.
4. Sprinkle the entire 15.25-ounce box of dry cake mix evenly over the filling. Break up any clumps with your fingers as you go and do not stir it in — the whole point is that it stays a separate layer.
5. Scatter the 1 cup of chopped pecans over the cake mix.
6. Drizzle the 3/4 cup of melted butter slowly and evenly across the entire surface, working in a back-and-forth pattern. Aim for full coverage; any dry patches will still be powdery after baking.
7. Bake for 50 to 55 minutes, until the topping is deep golden brown and the center barely jiggles when you nudge the pan. A knife inserted into the middle should come out with moist custard clinging to it, not liquid.
8. Cool in the pan on a rack for at least 30 minutes before serving. The filling firms up considerably as it cools, and cutting too early gives you a puddle.

Tips for Success

Cover every inch with butter. The single most common complaint about dump cakes is dry, floury patches on top, and it happens when the melted butter misses spots. Drizzle in slow rows, then check the surface and fill in any pale dry areas before it goes in the oven.

Trust the jiggle, not the clock. Ovens vary and glass dishes run slower than metal. A pumpkin dump cake is done when the center has a slight wobble like set gelatin — if it sloshes in a wave, give it another 5 to 8 minutes.

Let it cool longer than feels necessary. Warm from the oven, the custard has not finished setting, so the first square comes out looking like a landslide. Thirty minutes on the counter is the minimum, and an hour gives you clean edges.

Pumpkin Dump Cake Variations to Try

Use spice cake mix instead of yellow for a topping that echoes the filling, or a butter pecan mix if you can find one.

Swap the pecans for a cup of white chocolate chips scattered under the butter, which melt into pockets against the pumpkin.

Add a cream cheese swirl by dotting 4 ounces of softened cream cheese beaten with 2 tablespoons of sugar over the filling before the cake mix goes on — the same combination that makes our Pumpkin Cream Cheese Muffins so popular.

For an apple version, replace the pumpkin filling with two cans of apple pie filling and skip the evaporated milk and eggs entirely, closer to how our Cinnamon Roll Apple Bake comes together.

What to Serve With Pumpkin Dump Cake

Vanilla ice cream is the obvious partner and it earns the spot. The cold cream against the warm spiced custard is the reason people go back for a second square.

A cloud of lightly sweetened whipped cream is the lighter move, especially after a heavy holiday meal. Whip a cup of cold heavy cream with a tablespoon of sugar until it holds soft peaks.

If you’re building a full fall dessert spread, put this beside our Pecan Pie Bars so there’s something firm and handheld next to something you eat with a fork. For a bigger table, our Mini Pumpkin Pies cover the guests who want a classic slice.

FAQs

Can I use pumpkin pie filling instead of puree? No, not without changing the rest of the recipe. Pie filling already contains sugar, spices, and thickeners, so the cake ends up overly sweet and never sets properly. Look for a can labeled 100% pure pumpkin.

Can I make Pumpkin Dump Cake ahead? Yes. Bake it a full day in advance, cool completely, cover, and refrigerate. Serve it cold like pie, or warm individual squares for 20 to 30 seconds in the microwave to bring back the soft center.

How do I store Pumpkin Dump Cake leftovers? Because the filling is custard, it needs the refrigerator. Cover the pan tightly and keep it chilled for up to 4 days. The topping softens slightly over time but the flavor improves on day two.

Can I use a different pan size? A 9×13 is what the quantities are built for. In a smaller dish the filling layer gets too deep to set in the same time, so if you only have a 9×9, halve everything and start checking at 40 minutes.

Final Thoughts

A Pumpkin Dump Cake is the dessert to keep in your back pocket for the weeks when the calendar fills up. Fifteen minutes of work, ingredients that live in the pantry all season, and a pan that comes out looking like you fussed.

Make it once for a weeknight and you’ll end up bringing it to Thanksgiving. Scoop it warm, add the ice cream, and see if anyone believes you when you tell them how easy it was.