Pumpkin Dump cake Recipe tastes like a cross between pumpkin pie and buttery crumb cake, with warm spices and a crunchy pecan topping. It works perfectly for busy cooks who want a cozy fall dessert in about 50 minutes total, without fussy steps or fancy equipment. I have baked some version of this pumpkin dump cake recipe every October for a decade, and my neighbors now “check in” if they do not smell cinnamon from my kitchen.

Why Pumpkin Dump cake Recipe Is Worth It

You stir the pumpkin filling in one bowl, sprinkle cake mix on top, drizzle butter, and the oven does the rest. The result tastes like you spent hours in the kitchen, even though you barely measured anything.

This pumpkin dump cake recipe also feeds a crowd and travels well, so it works for potlucks, holidays, or random Tuesday cravings. You slice it like bars or scoop it like cobbler, and nobody complains either way.

Tastes like pumpkin pie met a buttery crumb cake at a fall party and never left my dessert plate. ★★★★★

Ingredients You Need

For the pumpkin layer:

1 can (15 ounces) 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
1/2 teaspoon fine sea salt
1 teaspoon vanilla extract

For the cake topping:

1 box yellow cake mix, about 15.25 ounces
- Use a classic brand like Betty Crocker or Duncan Hines for the most consistent crumb.
- Use spice cake mix for extra warm flavor and skip the extra cinnamon if you prefer.
3/4 cup unsalted butter, melted and slightly cooled
- Use salted butter and reduce the added salt in the filling by half if needed.

Optional crunch and texture:

3/4 cup chopped pecans or walnuts
- Toast the nuts in a dry skillet for 3 to 4 minutes for deeper flavor.
1/3 cup toffee bits or mini chocolate chips for a sweeter topping
Coarse sugar for extra sparkle on top

Pantry shortcuts and substitutions:

Use homemade pumpkin pie spice or mix 1 teaspoon cinnamon, 1/2 teaspoon ginger, 1/4 teaspoon nutmeg, 1/4 teaspoon allspice, and a pinch of cloves.
Swap evaporated milk with half and half in a pinch, though the texture sets a bit softer.
Use canned pumpkin puree only, not pumpkin pie filling, since that already includes sugar and spices.

Equipment list:

9 by 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
Sharp knife or serving spoon

Quick Tips & substitutions

Grease the baking dish well so the pumpkin layer releases cleanly.
Use cold cake mix straight from the pantry so it sprinkles easily and does not clump.
Melt the butter fully and drizzle it evenly over the cake mix so the topping browns evenly.
Tap the pan gently on the counter after you add the cake mix to settle it into the pumpkin layer.
Use spice cake mix instead of yellow cake mix for a stronger fall flavor.
Swap pecans with walnuts or skip nuts entirely if you need a nut free dessert.
Use coconut milk instead of evaporated milk for a dairy light version and a hint of coconut flavor.
Replace granulated sugar with coconut sugar for a deeper caramel note.
Chill the baked pumpkin dump cake recipe overnight if you prefer a firmer, almost pumpkin pie texture.
Serve warm if you want a softer, spoonable dessert that feels like pumpkin cobbler.

How to Make Pumpkin Dump cake Recipe

Mix the pumpkin filling

Preheat the oven to 350°F and grease a 9 by 13 inch baking dish with butter or nonstick spray.
In a large bowl, whisk the pumpkin puree, evaporated milk, eggs, granulated sugar, brown sugar, pumpkin pie spice, cinnamon, salt, and vanilla.
Whisk until the mixture looks smooth and no streaks of egg remain.
Pour the pumpkin mixture into the prepared baking dish and spread it into an even layer.

Add the cake mix topping

Open the box of yellow cake mix and break up any clumps with your fingers.
Sprinkle the dry cake mix evenly over the pumpkin layer, covering the surface from corner to corner.
Aim for a thin, even blanket of mix so no big bare pumpkin spots peek through.
Sprinkle chopped pecans, walnuts, or other toppings evenly over the cake mix if you use them.

Drizzle the butter

Melt the butter in a microwave safe cup or on the stovetop until fully liquid.
Let the butter cool for 1 to 2 minutes so it does not scorch the cake mix on contact.
Drizzle the melted butter slowly and evenly over the entire surface of the cake mix.
Try to moisten as much of the dry mix as possible, since those spots brown and crisp in the oven.

Bake until set and golden

Place the baking dish on the center rack of the oven.
Bake for 40 to 50 minutes, until the top looks golden brown and the pumpkin layer jiggles slightly in the center but no longer looks liquid.
Check at the 35 minute mark and tent loosely with foil if the topping browns too quickly.
Remove the pan from the oven and set it on a cooling rack.

Cool and serve

Let the pumpkin dump cake cool for at least 20 to 30 minutes so the filling sets.
Serve warm in scoops for a softer texture or cool completely for cleaner slices.
Top each serving with whipped cream or a scoop of vanilla ice cream if you like.
Dust with a little extra cinnamon or pumpkin pie spice right before serving for a bakery style look.

Recipe Variations

Gluten free: Use a gluten free yellow or spice cake mix and check that your pumpkin puree and spices list gluten free on the label.
Dairy light: Use coconut milk instead of evaporated milk and vegan butter or coconut oil for the topping.
Vegan: Use full fat coconut milk, vegan butter, and an egg replacer such as flax eggs or a commercial egg substitute.
Low sugar: Cut the granulated sugar to 1/2 cup and skip the toffee bits, then use a sugar free cake mix if you find one you like.
Extra spice: Add an extra 1/2 teaspoon cinnamon and a pinch of cloves for a stronger spice kick.
Chocolate twist: Sprinkle 1/2 cup mini chocolate chips over the cake mix before you drizzle the butter.
Maple version: Replace half the granulated sugar with pure maple syrup and reduce the evaporated milk slightly so the filling still sets.

Ways to Serve

Scoop warm pumpkin dump cake into bowls and top with vanilla ice cream.
Serve chilled squares with whipped cream and a sprinkle of cinnamon.
Pair a slice with hot coffee, chai, or cocoa for a cozy afternoon snack.
Pack cooled bars in lunch boxes as a fall dessert treat.
Serve small squares on a dessert platter with apple crisp and brownies for parties.

Storage Success

Let the pumpkin dump cake cool to room temperature, then cover the pan tightly with foil or transfer slices to airtight containers. Store in the refrigerator for up to 4 days, since the pumpkin custard layer counts as a dairy based filling. Reheat individual portions in the microwave for 20 to 30 seconds if you want that fresh baked warmth again. Freeze well wrapped slices for up to 2 months and thaw them overnight in the fridge before serving.