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This pumpkin Dump Cake has a soft, custardy pumpkin layer and a buttery, pecan-speckled cake top that gets crisp around the edges. You mix the pumpkin filling, sprinkle a boxed spice cake mix right over it, add pecans, pour on melted butter, and bake. For neat slices, chill it before serving—the little bit of refrigerator time is worth it.
Why You’ll Love It
- Easy dump-and-bake dessert — no mixer, crust, or fussy prep required.
- Cozy pumpkin flavor — warmly spiced pumpkin filling pairs with a buttery cake topping.
- Toasty pecan crunch — pecans add texture and a golden, crisp edge.
- Great for sharing — makes a full 9-by-13-inch pan for Thanksgiving, birthday dinners, or fall gatherings.
- Best chilled — the cold slices hold together beautifully and taste even better the next day.
Ingredient Notes
The most important thing here is to buy pumpkin puree, not pumpkin pie filling. The labels look awfully similar when you are in a hurry, and I have made that mistake once. Maybe twice. Pumpkin pie filling already has sugar and spices added, which throws off everything in this recipe.
For the evaporated milk, use the regular canned kind—not sweetened condensed milk. Sweetened condensed milk is wonderful, but it is not interchangeable here unless you are hoping to create a dessert so sweet your teeth start filing complaints.
I use a spice cake mix because it adds all those cozy cinnamon-and-spice notes without making you pull out seventeen jars from the cabinet. Any standard box is fine. I am not terribly loyal to brands on cake mix, though I do have opinions about mayonnaise and will keep those to myself because nobody asked.
Pecans are my favorite with pumpkin. They toast up in the butter and give the topping a little needed crunch. Walnuts work too, but pecans feel more right to me—especially in the fall, when every grocery store suddenly displays decorative gourds that nobody is actually going to cook. We all know it.
Use unsalted butter if you can, since it lets the sweetness and spice come through without the topping getting overly salty.
Ingredients
- 30 ounces pumpkin puree, not pumpkin pie filling
- 1 cup evaporated milk
- 1 cup granulated sugar
- 3 eggs, preferably room temperature, though mine are usually sitting out for maybe 15 minutes at best
- 2 teaspoons pumpkin pie spice
- 1 box spice cake mix, used dry straight from the box
- 1 cup chopped pecans
- 1 cup unsalted butter, melted
For serving, I like vanilla ice cream and caramel sauce, though neither is required. They are just awfully nice.
Instructions
Preheat your oven to 350°F. Spray a 9-by-13-inch baking pan with baking spray and set it aside. Do this first, because there is nothing more irritating than having a bowl full of pumpkin filling ready to go and realizing the pan is still in the basement freezer somehow. Don’t ask.
In a large bowl, stir together the pumpkin puree, evaporated milk, sugar, eggs, and pumpkin pie spice. You do not need to beat it to death—just mix until it is smooth and everything is combined. The mixture will be loose, more like a pie filling than cake batter. That is exactly right.
Pour the pumpkin mixture into the prepared baking pan. Use a spatula to spread it evenly, especially into the corners. I always think I have done this thoroughly, then later find one corner with no pumpkin under the topping. It is not the end of the world, but still. We strive for basic coverage.
Sprinkle the dry spice cake mix evenly over the entire pumpkin layer. Do not stir it in. This is the part that feels a little strange if you have never made a dump cake before, but leave it alone. Try to cover the pumpkin mixture completely.
Scatter the chopped pecans evenly over the cake mix. I like them fairly well distributed so every serving gets some, although there will always be one corner where they gather up like they are having a meeting.
Melt the butter and slowly pour it over the top, covering as much of the cake mix as you can. This matters. Dry patches of cake mix can stay powdery after baking, and nobody wants a mouthful of that. I use a spoon to drizzle butter into the stubborn little dry spots if needed. It is not glamorous, but neither is changing a smoke detector battery at midnight.
Bake for 1 hour. When you pull it out, the center may still have a little jiggle. That is normal—it continues setting as it cools. If it is very jiggly, though, put it back in for another 10 minutes. Trust your eyes a little here. It should not look sloshy.
Let the pan cool to room temperature, then refrigerate it before slicing and serving. I know the temptation to dig in warm is real. Go ahead and scoop a warm serving if you must; I certainly have. But for neat slices, chill it first. Serve with vanilla ice cream and caramel sauce if you are feeling generous, or if you have had a week and deserve caramel sauce yourself.
Variations
The spice cake mix is what I use most often, but you can swap in a yellow cake mix or white cake mix if that is what you have. The pumpkin filling stays the same.
Chopped walnuts can stand in for pecans if that is what is available. You can also top individual servings with whipped cream, cinnamon whipped cream, Chocolate sauce, toffee bits, or even a little cream cheese frosting. I tried chocolate chips over the top and, listen, it was fine. Perfectly edible. But it distracted from the pumpkin and spice for me. Not every experiment needs to become a tradition.
Storage & Reheating
Cover leftover pumpkin dump cake tightly and keep it in the refrigerator for up to 3 days. It is honestly wonderful cold right from the pan, maybe even better on day two when the flavors have settled down and gotten acquainted.
If you want it warm, microwave a slice for about 40 seconds, or until it is warmed the way you like it. It will be softer warm and may not hold a tidy square shape, but dessert does not need to be tidy. I have eaten this standing at the counter with a spoon while waiting for Pasta water to boil. No regrets.
For freezing, wrap the whole cooled pan tightly in plastic wrap and then foil, or portion slices into freezer containers. Thaw overnight in the refrigerator. You can serve it chilled or warm individual pieces in the microwave.
Final Notes
Every fall, I start out thinking I will make elaborate desserts—layer cakes, homemade pie dough, maybe something with browned butter and a handwritten menu. Then life does what life does. Somebody needs a ride. The laundry develops opinions. The leaves clog the gutter again. And suddenly, a simple pan of pumpkin dump cake sounds like the smartest thing in the world.
It is humble, I guess. Not fancy. But when that buttered spice topping cracks under the spoon and you get the cool pumpkin layer underneath… well. That’s plenty.
Make it for Thanksgiving if you want, or make it on a quiet October night when the air finally Smells like woodsmoke and somebody has already started arguing about the thermostat. Save a square for breakfast the next morning. I’m not saying you should.
I’m saying I have.
Pumpkin Dump Cake
Ingredients Â
- 30 ounces pumpkin puree not pumpkin pie filling
- 1 cup evaporated milk
- 1 cup granulated sugar
- 3 eggs preferably room temperature
- 2 teaspoons pumpkin pie spice
- 1 box spice cake mix used dry straight from the box
- 1 cup chopped pecans
- 1 cup unsalted butter melted
- baking spray for the pan
- vanilla ice cream optional, for serving
- caramel sauce optional, for serving
InstructionsÂ
- Preheat your oven to 350°F, spray a 9-by-13-inch baking pan with baking spray, and set it aside.
- In a large bowl, stir together the pumpkin puree, evaporated milk, granulated sugar, eggs, and pumpkin pie spice until smooth and combined; the mixture will be loose like pie filling.
- Pour the pumpkin mixture into the prepared baking pan and spread it evenly with a spatula, making sure it reaches the corners.
- Sprinkle the dry spice cake mix evenly over the entire pumpkin layer, covering it as completely as possible, and do not stir it in.
- Scatter the chopped pecans evenly over the cake mix so every serving gets some crunch.
- Slowly pour the melted butter over the top, covering as much of the cake mix as possible, using a spoon to drizzle butter over any dry spots if needed.
- Bake for 1 hour, until the center may still have a slight jiggle but does not look sloshy; if it is very jiggly, bake for another 10 minutes.
- Let the pan cool to room temperature, then refrigerate before slicing and serving for neat slices.
- Serve chilled or scoop it warm if desired, with vanilla ice cream and caramel sauce if using.