My aunt has been making some version of this cake for every fall gathering as far back as I can remember, and for years I assumed it involved way more steps than it actually does. The name always made me picture something chaotic, and in a way it kind of is — you really do just dump everything into the pan in layers, no mixing bowls or careful folding required. The first time I made it myself, I kept waiting for a step I was missing, but no, it really is that simple, and it comes out just as good every single time.
This Pumpkin Dump Cake layers a spiced pumpkin filling with a dry cake mix and melted butter, baked together until the top turns golden and slightly crisp while the pumpkin underneath stays soft and custardy. It’s an easy addition to a fall dessert spread alongside things like my Classic Pumpkin Pie or my Pumpkin Cheesecake Bars, and if you want something different in texture on the same table, my Apple Pie Cinnamon Rolls rounds things out nicely.
Why This Recipe Works
The whole appeal of a dump cake is in the layering, not mixing — pouring the pumpkin filling into the dish first, then scattering the dry cake mix directly on top without stirring it in, is what creates the two distinct textures this dessert is known for. As the butter drizzled over the top melts and seeps down into the dry mix while baking, it turns into a crumbly, golden topping, while the pumpkin layer underneath bakes into something closer to a soft custard.
Getting that butter evenly distributed over every part of the dry cake mix really matters here, since any spot left uncovered won’t bake properly and can stay dry and powdery instead of turning golden. It’s a small detail, but it’s really the difference between a cake that bakes evenly and one with a few disappointing dry patches.
Ingredients You’ll Need
For the pumpkin layer:
- 1 can (15 oz) pumpkin puree (plain, not pumpkin pie filling)
- 1 can (12 oz) evaporated milk
- 3 large eggs
- 1 cup granulated sugar
- 2 teaspoons pumpkin pie spice
- ½ teaspoon salt
For the topping:
- 1 box (15.25 oz) yellow cake mix, dry (do not prepare)
- 1 cup unsalted butter, melted
- 1 cup chopped pecans (optional)
Step-by-Step Instructions
1. Mix and Pour the Pumpkin Layer
Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish. In a large bowl, whisk together the pumpkin puree, evaporated milk, eggs, sugar, pumpkin pie spice, and salt until smooth. Pour the mixture into the prepared baking dish.
2. Dump the Dry Cake Mix
Sprinkle the dry cake mix evenly over the pumpkin layer, straight from the box, without stirring it in. Try to cover the surface as completely and evenly as you can.
3. Add the Butter
Drizzle the melted butter evenly over the top of the dry cake mix, making sure to reach as much of the surface as possible so no dry patches are left uncovered.
4. Add the Pecans
If using, sprinkle the chopped pecans evenly over the top.
5. Bake
Bake for 50–55 minutes, until the top is golden brown and the pumpkin layer underneath is set. Let cool for at least 30 minutes before serving, either warm or at room temperature.
Tips From My Kitchen
- Take your time drizzling the butter — full coverage over the dry cake mix is what keeps the topping from staying powdery in spots.
- Let the cake cool for a bit before serving so the pumpkin layer has time to fully set.
- This cake is easily doubled for a larger gathering — just use a bigger dish and add extra baking time.
- A scoop of vanilla ice cream on top of a warm slice makes this feel even more like a proper dessert.
Nutrition Information
Estimated values per serving, based on 15 servings:
- Calories: approximately 300–330
- Protein: 4–5g
- Carbohydrates: 36–39g
- Fat: 16–18g
- Sugar: 24–26g
For a lighter version, use a reduced amount of butter, taking extra care to still spread it evenly — the topping will be a little less rich but still crumbly and golden.
Storage and Reheating
Store leftovers covered in the fridge for up to 5 days, since the pumpkin layer needs to stay chilled. Serve cold or let sit at room temperature for a bit before serving, or warm briefly in the microwave if you prefer it slightly heated. This cake freezes reasonably well: wrap tightly and freeze for up to 2 months, then thaw overnight in the fridge before serving.
Frequently Asked Questions
What’s the difference between a dump cake and a regular cake?
A dump cake skips traditional mixing — the ingredients are layered directly in the baking dish rather than combined in a bowl, which is what gives it that distinct crumbly topping over a softer base.
Can I use a spice cake mix instead of yellow?
Yes, a spice cake mix adds even more warm flavor to the topping and pairs nicely with the pumpkin underneath.
Why is part of my topping still dry and powdery?
This happens when the melted butter doesn’t fully reach every part of the dry cake mix. Drizzle it slowly and evenly over the whole surface to avoid dry patches.
Can I make this ahead of time?
Yes, this cake keeps well in the fridge for several days, making it a convenient make-ahead dessert for a busy holiday schedule.
Final Thoughts
This Pumpkin Dump Cake has become one of those desserts I make whenever I want something easy that still delivers big on flavor, no real effort required beyond a bit of careful layering. Soft, spiced pumpkin underneath a golden, buttery topping, I hope it earns a spot in your fall baking rotation too.
