Pumpkin Pie Dump Cake With Spice Cake Mix tastes like a cross between classic pumpkin pie and a buttery crumb cake, with warm spices and a soft, custardy center. It works perfectly for busy holiday hosts, potlucks, or anyone who wants a cozy fall dessert in about an hour with minimal effort. I tested this version on my own family of pumpkin fanatics, and they scraped the pan so clean I thought someone licked it.

Why Pumpkin Pie Dump Cake With Spice Cake Mix Is Worth It

Pumpkin Pie Dump Cake With Spice Cake Mix gives you all the flavor of homemade pumpkin pie without the fuss of rolling crust or blind baking. You stir the pumpkin filling in one bowl, sprinkle on the cake mix, drizzle butter, and the oven does the rest.

The spice cake mix brings cinnamon, nutmeg, and cloves to the party, so you skip half the spice cabinet. The result tastes like you spent hours in the kitchen, even though you just stirred, sprinkled, and baked.

“This Pumpkin Pie Dump Cake With Spice Cake Mix tastes like a bakery pumpkin dessert but comes together in minutes, which makes it my new holiday hero. ★★★★★”

Ingredients You Need

Pumpkin layer

1 can (15 ounces) pure pumpkin puree
1 can (12 ounces) evaporated milk
3 large eggs
3/4 cup granulated sugar
1/4 cup light brown sugar, packed
2 teaspoons pumpkin pie spice
1 teaspoon ground cinnamon (boosts the spice cake flavor)
1 teaspoon vanilla extract
1/2 teaspoon fine sea salt

Use pure pumpkin puree, not pumpkin pie filling. I like Libby’s for consistent texture, but any thick, not watery, pumpkin works.

Cake and topping layer

1 box (about 15.25 ounces) spice cake mix
- Duncan Hines or Betty Crocker both bake up fluffy and flavorful.
3/4 cup unsalted butter, melted and slightly cooled
1/2 cup chopped pecans or walnuts (optional but highly recommended)
1/4 cup turbinado sugar or extra granulated sugar (adds crunch on top, optional)

The spice cake mix adds built-in flavor, so you skip extra spices in the topping. Melted butter soaks into the dry mix and forms that golden, cobbler-style crust.

Pantry shortcuts and substitutions

Use canned pumpkin and boxed spice cake mix as your main shortcuts.
Swap pumpkin pie spice with 1 1/2 teaspoons cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, and a pinch of cloves if needed.
Use half-and-half in place of evaporated milk in a pinch, though the texture turns slightly richer and softer.

Equipment list

9×13-inch baking dish (glass or ceramic works best)
Large mixing bowl
Whisk and rubber spatula
Measuring cups and spoons
Small bowl or measuring cup for melting butter
Cooling rack

Quick Tips & substitutions

Grease the baking dish well so slices scoop out cleanly.
Use room temperature eggs so they mix smoothly into the pumpkin filling.
Stir the pumpkin filling until smooth, but stop once it looks uniform to avoid overmixing.
Sprinkle the dry spice cake mix evenly over the pumpkin layer; do not stir it in.
Drizzle melted butter over the cake mix as evenly as possible so fewer dry spots remain.
If a few dry patches stay on top, spray lightly with cooking spray halfway through baking.
Swap pecans with walnuts or skip nuts entirely if you serve kids or nut-averse guests.
Use a gluten-free spice cake mix to make a gluten-free pumpkin dump cake.
Replace evaporated milk with full-fat coconut milk for a dairy-free version.
Chill the baked cake before slicing if you want cleaner, more pie-like squares.

How to Make Pumpkin Pie Dump Cake With Spice Cake Mix

Step 1: Mix the pumpkin filling

Preheat your oven to 350°F and grease a 9×13-inch baking dish with butter or nonstick spray. In a large bowl, whisk pumpkin puree, evaporated milk, eggs, granulated sugar, brown sugar, pumpkin pie spice, cinnamon, vanilla, and salt until smooth. The mixture should look like classic pumpkin pie filling: silky, pourable, and slightly thick.

Pour the pumpkin mixture into the prepared baking dish and spread it into an even layer. Smooth the top with a spatula so the cake mix sits evenly on top later. Set the dish aside while you handle the topping.

Step 2: Add the spice cake mix layer

Open the spice cake mix and break up any clumps in the bag with your fingers. Sprinkle the dry cake mix evenly over the pumpkin layer, covering it from corner to corner. Aim for a thin, even blanket of mix so the butter can soak through and form a uniform crust.

If you see big piles of mix, gently spread them with your hand or a spoon. Keep the pumpkin layer underneath intact and avoid stirring the two layers together. You want a clear pumpkin base and cake topping.

Step 3: Add butter and crunchy toppings

Melt the butter in a microwave-safe bowl or small saucepan until fully liquid, then let it cool for a minute. Slowly drizzle the melted butter over the entire surface of the cake mix, paying attention to the edges and corners. The butter should hit as much of the dry mix as possible, since that contact creates the golden, crisp bits.

Sprinkle chopped pecans or walnuts over the top if you use them. Add a light shower of turbinado sugar for extra crunch and sparkle. The nuts toast in the oven and add a buttery, nutty note that pairs perfectly with pumpkin.

Step 4: Bake until set and golden

Place the baking dish on the center rack and bake at 350°F for 45–55 minutes. Start checking around 40 minutes, since ovens vary. The edges should look set and slightly puffed, and the top should look golden brown with some deeper caramelized spots.

The center should jiggle slightly, like pumpkin pie, but not slosh. If the middle still looks very wet, bake another 5–10 minutes. The pumpkin layer continues to firm up as it cools, so avoid overbaking until it dries out.

Step 5: Cool and serve

Set the pan on a cooling rack and let the pumpkin dump cake cool at least 20–30 minutes. The filling thickens as it cools, which makes serving easier. Scoop warm portions with a large spoon for a cobbler-style dessert, or chill the pan for a few hours if you want neat squares.

Serve Pumpkin Pie Dump Cake With Spice Cake Mix warm, at room temperature, or chilled, depending on your mood. Add a scoop of vanilla ice cream or a big swirl of whipped cream on top. A sprinkle of cinnamon over the cream adds a bakery-style finish.

Recipe Variations

Gluten-free: Use a gluten-free spice cake mix and check that your pumpkin pie spice and vanilla use gluten-free labeling.
Dairy-free: Swap evaporated milk with full-fat coconut milk and use dairy-free butter sticks or coconut oil.
Egg-free: Replace each egg with 1/4 cup unsweetened applesauce or use a commercial egg replacer according to package directions.
Lower sugar: Use a no-sugar-added spice cake mix if you find one, reduce granulated sugar to 1/2 cup, and skip the turbinado sugar topping.
Extra spice: Add 1/2 teaspoon extra cinnamon and a pinch of cloves to the pumpkin filling for a stronger spice kick.
Chocolate twist: Sprinkle 1/2–3/4 cup mini chocolate chips over the pumpkin layer before the cake mix.
Crunch lover version: Double the nuts and add crushed gingersnaps on top with the turbinado sugar.

Ways to Serve Pumpkin Pie Dump Cake With Spice Cake Mix

Warm with vanilla ice cream and a drizzle of caramel sauce.
At room temperature with a big dollop of whipped cream and a dusting of cinnamon.
Chilled from the fridge, sliced into bars for easy dessert platters.
With a scoop of cinnamon or pumpkin ice cream for extra fall flavor.
As a brunch dessert on a holiday table next to coffee, hot chocolate, or chai.

Storage Success

Let the Pumpkin Pie Dump Cake With Spice Cake Mix cool to room temperature, then cover the pan tightly with plastic wrap or a lid. Store it in the refrigerator for up to 4 days. The flavors deepen on day two, and the texture turns even more custardy and rich.

Reheat individual portions in the microwave for 20–30 seconds if you want that warm, cozy vibe again. You can also freeze slices in airtight containers for up to 2 months, then thaw in the fridge overnight and warm gently before serving.