Pumpkin Dump cake Recipe tastes like a cross between pumpkin pie and buttery crumb cake, with pockets of warm spice and crunchy pecan topping. It works perfectly for busy home cooks who want a cozy fall dessert in about an hour with almost no effort. I first baked this on a Tuesday night in sweatpants, and my family still talks about “that pumpkin thing” like it changed their lives.

Why Make This Pumpkin Dump cake Recipe at Home

This Pumpkin Dump cake Recipe uses pantry staples, takes minimal effort, and still tastes like you fussed all afternoon. You stir the pumpkin layer in one bowl, sprinkle cake mix on top, drizzle butter, and the oven does the rest.

You also control the sweetness and spice level, which helps if you find store-bought pumpkin desserts too sugary. The recipe scales easily, so you can feed a crowd or just your household without a mountain of leftovers.

My family begged for seconds of this Pumpkin Dump cake Recipe and scraped the pan clean, ★★★★★

Ingredients You Need

Here is everything you need for the Pumpkin Dump cake Recipe, plus some notes from a decade of trial and error.

Pumpkin layer

1 can (15 ounces) pumpkin puree
- Use 100% pumpkin puree, not pumpkin pie filling. Libby’s or store-brand both work well.
1 can (12 ounces) evaporated milk
- Evaporated milk gives a custardy texture without heavy cream.
3 large eggs
3/4 cup granulated sugar
1/4 cup light brown sugar, packed
2 teaspoons pumpkin pie spice
- Or use 1 1/4 teaspoons cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, 1/8 teaspoon cloves, 1/8 teaspoon allspice.
1 teaspoon pure vanilla extract
1/2 teaspoon fine sea salt

Cake and topping layer

1 box yellow cake mix (about 15.25 ounces)
- You can use spice cake mix for extra warm flavor.
3/4 cup unsalted butter, melted and slightly cooled
- Use real butter, not margarine, for best flavor.
1/2 cup chopped pecans or walnuts (optional but highly recommended)
1/3 cup toffee bits or butterscotch chips (optional for extra sweetness and texture)

Optional finishing touches

Whipped cream or whipped topping
Vanilla ice cream
Caramel sauce
Extra cinnamon for dusting

Pantry shortcuts and substitutions

Use canned pumpkin puree and boxed cake mix to keep the recipe weeknight friendly.
Swap evaporated milk with half-and-half if needed; keep the same amount.
Replace granulated sugar with coconut sugar for a deeper caramel note.
Use gluten free yellow cake mix to make a gluten friendly version.

Equipment list

9×13 inch baking dish (glass or metal)
Large mixing bowl
Whisk and rubber spatula
Measuring cups and spoons
Small bowl or measuring cup for melting butter
Cooling rack
Knife or offset spatula for serving

Tips & Mistakes

Grease the baking dish generously so the pumpkin layer releases easily and slices hold shape.
Whisk the pumpkin layer until smooth so no streaks of egg or spice show up in the baked dessert.
Sprinkle the dry cake mix evenly over the pumpkin layer and avoid stirring; stirring ruins the classic dump cake texture.
Drizzle the melted butter over the cake mix as evenly as possible so you avoid dry powdery spots.
Use a rimmed baking sheet under the pan if your oven runs hot; this prevents over-browning on the bottom.
Bake until the center barely jiggles and the top turns golden brown; underbaking leads to a soupy middle.
Let the Pumpkin Dump cake Recipe cool at least 20 to 30 minutes so the custard sets and slices cut cleanly.
Store leftovers in the fridge and reheat gently; high heat in the microwave can turn the texture rubbery.

How to Make Pumpkin Dump cake Recipe

Step 1: Mix the pumpkin base

Preheat your oven to 350°F and grease a 9×13 inch baking dish with butter or nonstick spray. In a large bowl, whisk together pumpkin puree, evaporated milk, eggs, granulated sugar, brown sugar, pumpkin pie spice, vanilla, and salt. Whisk until the mixture looks smooth and slightly thick, with no streaks of egg.

Pour the pumpkin mixture into the prepared baking dish and spread it into an even layer. Give the pan a gentle tap on the counter to pop any big air bubbles.

Step 2: Add the cake mix layer

Open the box of yellow cake mix and sprinkle the dry mix evenly over the pumpkin layer. Use your hand or a spoon to scatter it in a thin, uniform layer so no big mounds form. Do not stir; the cake mix should sit right on top of the pumpkin mixture.

If you see any large clumps of mix, break them up gently with your fingers. Aim for an even blanket of cake mix from corner to corner.

Step 3: Add butter and crunchy topping

Melt the butter in a microwave safe bowl or on the stovetop, then let it cool for a minute so it does not scorch the cake mix. Slowly drizzle the melted butter all over the dry cake mix, trying to cover as much surface area as possible. The butter hydrates the mix and creates that crisp, golden top.

Sprinkle chopped pecans and toffee bits over the top if you use them. They add crunch and a caramel note that pairs perfectly with pumpkin spice.

Step 4: Bake until golden and set

Place the baking dish on the center rack of the oven. Bake at 350°F for 45 to 55 minutes, until the top looks golden brown and the edges bubble slightly. The center should jiggle just a little, like a soft pumpkin pie.

If the top browns too quickly, tent the pan loosely with foil and continue baking. Once done, transfer the pan to a cooling rack and let it cool at least 20 to 30 minutes before serving.

Step 5: Serve warm or chilled

Serve the Pumpkin Dump cake Recipe slightly warm for a soft, spoonable dessert. Add a scoop of vanilla ice cream or a big swirl of whipped cream on top. You can also chill it for a few hours for cleaner slices and a firmer custard layer.

Both versions taste incredible, so choose based on your patience level and whether you have ice cream in the freezer.

Variations I've Tried

Spice cake version: Use spice cake mix instead of yellow cake mix for extra cinnamon and nutmeg flavor. This version tastes closest to pumpkin pie with a crumb topping.
Pecan pie twist: Add an extra 1/4 cup brown sugar and 1/4 cup chopped pecans to the cake mix layer, then drizzle 2 tablespoons of maple syrup over the top before baking. The result tastes like pumpkin pie met pecan pie.
Chocolate chip pumpkin dump cake: Sprinkle 1 cup mini chocolate chips over the pumpkin layer before the cake mix. The chocolate melts into little pockets and kids go wild for it.
Coconut pumpkin dump cake: Add 1/2 cup shredded sweetened coconut and 1/2 cup chopped macadamia nuts on top of the cake mix. This version tastes rich and slightly tropical while still cozy.
Dairy light version: Use evaporated oat milk and plant based butter to keep the recipe dairy light. The texture stays creamy and the pumpkin flavor still shines.

How to Serve Pumpkin Dump cake Recipe

Serve Pumpkin Dump cake Recipe warm or at room temperature with a generous spoonful of whipped cream or a scoop of vanilla ice cream. Drizzle a little caramel sauce over the top for extra sweetness and a pretty finish. You can dust the top with cinnamon or pumpkin pie spice for a bakery style look.

This dessert works well for weeknight treats, potlucks, holiday dinners, or casual game nights. Cut it into squares or scoop it like a cobbler, and watch it disappear.

How to store

Room temperature: Keep the Pumpkin Dump cake Recipe at room temperature for up to 2 hours after baking, then move it to the fridge.
Fridge: Cover the pan tightly with plastic wrap or a lid and store in the fridge for 3 to 4 days.
Freezer: Cool completely, cut into squares, wrap each piece in plastic, then place in a freezer bag; freeze for up to 2 months.
Reheating single servings: Warm a slice in the microwave on medium power for 20 to 30 seconds until just heated through.
Reheating a pan: Cover the pan with foil and warm in a 300°F oven for 15 to 20 minutes until the center feels warm but not hot.