Name: Pumpkin Dump Cake with Sweetened Condensed Milk
Prep time: 15 min
Cook time: 50 min
Total time: 65 min
Ingredients: 1 can (15 ounces) pumpkin puree; 1 can (14 ounces) sweetened condensed milk; 3 large eggs; 1/2 cup granulated sugar; 1/4 cup brown sugar, packed; 2 teaspoons pumpkin pie spice; 1 teaspoon vanilla extract; 1/2 teaspoon fine sea salt; 1 box (about 15.25 ounces) yellow cake mix; 1 teaspoon ground cinnamon; 3/4 cup unsalted butter, melted; 1/2 cup chopped pecans or walnuts; whipped cream or whipped topping; vanilla ice cream; caramel sauce; crushed gingersnaps or graham crackers

Pumpkin Dump Cake with Sweetened Condensed Milk tastes like pumpkin pie and buttery crumb cake had the coziest fall baby. It works for busy home cooks who want a holiday-worthy dessert on the table in about an hour with almost zero effort. I tested this on a Tuesday night in sweatpants, so you know it fits real life.

Why Pumpkin Dump Cake with Sweetened Condensed Milk Is Worth It

Pumpkin dump cake with sweetened condensed milk gives you all the flavor of pumpkin pie without rolling a single crust. The sweetened condensed milk makes the filling rich, silky, and caramel-kissed, while the cake mix topping bakes into crunchy, buttery crumbles.

You stir the pumpkin layer in one bowl, sprinkle cake mix on top, drizzle with butter, and the oven does the rest. It works beautifully for holidays, potlucks, or “I just want pumpkin dessert and I want it soon” nights.

“This pumpkin dump cake with sweetened condensed milk tastes like a bakery dessert but comes together with pantry shortcuts and almost no effort. ★★★★★”

Ingredients You Need

Pumpkin layer:

1 can (15 ounces) pumpkin puree
- Use pure pumpkin, not pumpkin pie mix. I like Libby’s for consistent texture.
1 can (14 ounces) sweetened condensed milk
- Any brand works; Eagle Brand tastes extra rich.
3 large eggs
- Bring them to room temperature so they mix smoothly.
1/2 cup granulated sugar
- You can cut to 1/3 cup if you prefer a less sweet dessert.
1/4 cup brown sugar, packed
- Light or dark brown sugar both work; dark adds deeper molasses notes.
2 teaspoons pumpkin pie spice
- Or mix 1 1/2 teaspoons cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, 1/8 teaspoon cloves.
1 teaspoon vanilla extract
- Pure vanilla gives the best flavor, but imitation works in a pinch.
1/2 teaspoon fine sea salt
- Balances the sweetness and boosts the pumpkin flavor.

Cake topping:

1 box (about 15.25 ounces) yellow cake mix
- Use any brand; Betty Crocker and Duncan Hines both bake up nicely. Spice cake mix also works.
1 teaspoon ground cinnamon (optional)
- Mix into the dry cake mix for extra warm flavor.
3/4 cup unsalted butter, melted
- Use real butter, not margarine. Salted butter works; just reduce added salt in the pumpkin layer slightly.
1/2 cup chopped pecans or walnuts (optional)
- Add crunch and a toasty flavor. Toast them lightly on the stove for extra depth.

Optional toppings:

Whipped cream or whipped topping
Vanilla ice cream
Caramel sauce
Crushed gingersnaps or graham crackers for extra crunch

Equipment:

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

Quick Tips & substitutions

Use pure pumpkin puree, not pumpkin pie filling, so you control the sweetness and spice.
Swap yellow cake mix with spice cake mix for extra cozy flavor.
Melt the butter fully and drizzle it evenly so the topping bakes crisp and golden.
Line the pan with parchment or grease it well to prevent sticking.
Mix the pumpkin layer thoroughly so the sweetened condensed milk and eggs blend smoothly.
Let the cake cool at least 20–30 minutes so it sets and slices cleanly.
Use evaporated milk plus 3/4 cup sugar if you run out of sweetened condensed milk, though the texture changes slightly.
Skip the nuts or replace them with chocolate chips if you bake for nut-free guests.
Use lactose-free sweetened condensed milk and dairy-free butter sticks for sensitive stomachs.
Chill leftovers overnight for a firmer, pumpkin-pie-like texture.

How to Make Pumpkin Dump Cake with Sweetened Condensed Milk

Step 1: Prep the pan and oven

Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or nonstick spray, or line it with parchment and lightly grease the parchment. Set the pan aside while you mix the pumpkin layer.

Step 2: Mix the pumpkin filling

In a large bowl, add pumpkin puree, sweetened condensed milk, eggs, granulated sugar, brown sugar, pumpkin pie spice, vanilla, and salt. Whisk until the mixture looks smooth, glossy, and uniform with no streaks of egg. Scrape the sides and bottom of the bowl to catch any pockets of pumpkin or sugar.

Step 3: Pour the pumpkin layer into the pan

Pour the pumpkin mixture into the prepared baking dish. Use a spatula to spread it into an even layer, especially into the corners. Smooth the top so the cake mix sits evenly and bakes consistently.

Step 4: Add the cake mix topping

Open the cake mix and pour it into a bowl. Stir in the cinnamon if you use it. Sprinkle the dry cake mix evenly over the pumpkin layer, covering the surface completely without stirring it in.

Step 5: Add butter and nuts

Melt the butter in a microwave-safe cup or on the stove. Drizzle the melted butter slowly and evenly over the dry cake mix, aiming to moisten as much of the surface as possible. Sprinkle chopped nuts over the top if you use them, focusing on any dry patches.

Step 6: Bake until golden and set

Place the pan in the center of the oven. Bake 45–55 minutes, until the top looks golden brown and crisp and the pumpkin layer looks set around the edges with a gentle jiggle in the center. If the top browns too quickly, tent the pan loosely with foil during the last 10–15 minutes.

Step 7: Cool and serve

Set the pan on a cooling rack and let the pumpkin dump cake rest at least 20–30 minutes. The filling thickens as it cools, which helps it slice more neatly. Serve warm, at room temperature, or chilled with whipped cream or ice cream.

Recipe Variations

Gluten-free: Use a gluten-free yellow cake mix and check that your pumpkin pie spice and vanilla carry gluten-free labels.
Vegan-style: Use coconut milk caramel or vegan condensed coconut milk, an egg replacer (like flax eggs or commercial egg replacer), and dairy-free cake mix and butter substitute.
Low sugar: Reduce the granulated sugar to 2 tablespoons and use a sugar-free or reduced-sugar cake mix.
Low carb inspired: Use unsweetened pumpkin, a low-carb sweetener blend in the filling, and a low-carb baking mix on top, then adjust sweetness to taste.
Chocolate twist: Add 1/2 cup mini chocolate chips over the pumpkin layer before the cake mix.
Extra spice: Increase pumpkin pie spice to 2 1/2 teaspoons and add a pinch of black pepper for a bakery-style kick.
Coconut crunch: Sprinkle 1/2 cup shredded coconut over the cake mix before the butter drizzle.
Gingersnap crunch: Crush gingersnap cookies and mix them with the cake mix for extra flavor and texture.

Ways to Serve Pumpkin Dump Cake with Sweetened Condensed Milk

Warm with a scoop of 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 straight from the fridge for a firmer, pumpkin-pie-bar vibe.
With a sprinkle of crushed gingersnaps or graham crackers on top for crunch.
As a brunch dessert alongside hot coffee, chai, or spiced tea.

Storage Success

Let the pumpkin dump cake cool completely, then cover the pan tightly with plastic wrap or transfer slices to an airtight container. Store in the refrigerator for up to 4 days, since the pumpkin and sweetened condensed milk filling acts like custard. Reheat individual portions in the microwave for 15–25 seconds if you want that warm, cozy texture again. Freeze tightly wrapped slices for up to 2 months and thaw them overnight in the fridge before serving.