Name: Pumpkin Dump Cake with Sweetened Condensed Milk
Prep time: 15 min
Cook time: 50 min
Total time: 65 min
Ingredients: 15 ounce can pumpkin puree (pure pumpkin, not pumpkin pie filling); 14 ounce can sweetened condensed milk; 3 large eggs; 3/4 cup granulated sugar; 1/4 cup light brown sugar, packed; 2 teaspoons pumpkin pie spice; 1 teaspoon vanilla extract; 1/2 teaspoon fine sea salt; 1 box yellow cake mix (about 15.25 ounces, dry); 1 cup unsalted butter, melted; 1/2 cup chopped pecans or walnuts; 1/3 cup toffee bits; whipped cream or vanilla ice cream, for serving; caramel sauce, for drizzling

Pumpkin Dump Cake with Sweetened Condensed Milk tastes like pumpkin pie and buttery cobbler had a very cozy, very cinnamony baby. It works perfectly for busy home cooks who want a crowd-pleasing fall dessert in about an hour with almost zero fuss. I first baked this on a Tuesday night in sweatpants, and my family still talks about it like it was a national holiday.

Why Pumpkin Dump Cake with Sweetened Condensed Milk Is Worth It

This dessert gives you all the flavor of pumpkin pie with a fraction of the effort. You stir the pumpkin layer in one bowl, sprinkle cake mix on top, drizzle butter, and the oven does the rest. The sweetened condensed milk adds a caramel-like richness that makes every bite taste extra indulgent.

You also feed a crowd without babysitting a mixer or rolling a single pie crust. The recipe uses pantry staples, so you pull it together when guests “suddenly” appear or when a pumpkin craving hits hard. Cleanup stays easy, and the leftovers taste even better the next day.

“This Pumpkin Dump Cake with Sweetened Condensed Milk tastes like a bakery-level fall dessert but comes together with the effort of a lazy weeknight dinner ★★★★★”

Ingredients You Need

Pumpkin layer

1 can (15 ounces) pumpkin puree
- Use pure pumpkin, not pumpkin pie filling. Libby’s or store-brand both work well.
1 can (14 ounces) sweetened condensed milk
- Any brand works; Eagle Brand gives a slightly thicker, richer texture.
3 large eggs
3/4 cup granulated sugar
1/4 cup light brown sugar, packed
2 teaspoons pumpkin pie spice
- Or mix 1 1/2 teaspoons cinnamon, 1/4 teaspoon nutmeg, 1/4 teaspoon ginger, and a pinch of cloves.
1 teaspoon vanilla extract
1/2 teaspoon fine sea salt

Cake layer

1 box (about 15.25 ounces) yellow cake mix
- Spice cake mix also works and gives extra warm flavor.
- Gluten-free yellow cake mix works if you need a gluten-free version.
1 cup (2 sticks) unsalted butter, melted
- Salted butter works too; just reduce the added salt in the pumpkin layer slightly.

Optional toppings

1/2 cup chopped pecans or walnuts
1/3 cup toffee bits
Whipped cream or vanilla ice cream for serving
Caramel sauce for drizzling

Pantry shortcuts

You use canned pumpkin, boxed cake mix, and canned sweetened condensed milk, so you skip complicated steps. Pumpkin pie spice saves time and keeps your spice cabinet from turning into a math problem. Pre-chopped nuts and store-bought caramel sauce keep prep even easier.

Equipment list

9×13-inch baking dish (glass or metal)
Large mixing bowl
Whisk and rubber spatula
Measuring cups and spoons
Small bowl or microwave-safe 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 spices.
Stir the pumpkin layer until smooth, but do not overbeat; you just need everything combined.
Sprinkle the dry cake mix evenly over the pumpkin layer; do not stir it in.
Drizzle melted butter over the cake mix as evenly as possible to avoid dry patches.
If some dry spots remain after baking, brush a little extra melted butter over those areas and bake 5 more minutes.
Swap yellow cake mix with spice cake mix for a stronger fall flavor.
Use gluten-free cake mix for a gluten-free version; keep all other ingredients gluten-free as well.
Replace sweetened condensed milk with coconut sweetened condensed milk for a dairy-light twist.
Use evaporated milk plus extra sugar only if you must; the texture turns less rich.
Add chopped pecans or walnuts on top of the cake mix before baking for crunch.
Let the cake cool at least 20–30 minutes so it sets and slices more cleanly.
Chill overnight if you want a firmer, pumpkin-pie-like texture.

How to Make Pumpkin Dump Cake with Sweetened Condensed Milk

Step 1: Preheat and prep the pan

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

Step 2: Mix the pumpkin base

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 and glossy with no streaks of egg or pumpkin. Scrape the sides and bottom of the bowl with a spatula to catch any hidden pockets of spice.

Pour the pumpkin mixture into the prepared baking dish. Spread it into an even layer with your spatula. This layer will bake into a custardy, pumpkin-pie-style base.

Step 3: 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 distribute it in a thin, uniform blanket. Do not stir; the magic of this dessert comes from the separate layers.

If you see any big mounds of cake mix, gently break them up with your fingers. Aim for an even layer so the butter can soak in nicely.

Step 4: Add butter and optional toppings

Melt the butter in a microwave-safe bowl or on the stove. Slowly drizzle the melted butter over the entire surface of the dry cake mix. Try to cover as much of the cake mix as you can, especially the corners.

If you use nuts or toffee bits, sprinkle them on top of the buttery cake mix. They will toast in the oven and add crunch and flavor.

Step 5: Bake to golden perfection

Place the baking dish on the center rack of the oven. Bake for 45–55 minutes, until the top turns deep golden brown and the edges bubble. The pumpkin layer should look set but still slightly jiggly in the very center.

If the top browns too quickly, tent the pan loosely with foil during the last 10–15 minutes. Check the center with a knife; it should come out mostly clean through the cake layer, with some soft pumpkin on the tip.

Step 6: Cool and set

Remove the pan from the oven and place it on a cooling rack. Let the pumpkin dump cake rest at least 20–30 minutes before serving. The custard layer thickens as it cools, and the topping firms up a bit.

You can serve it warm, at room temperature, or chilled. I like it slightly warm with a cold scoop of vanilla ice cream, because contrast makes dessert more fun.

Step 7: Serve

Cut the Pumpkin Dump Cake with Sweetened Condensed Milk into squares or scoop it out like a cobbler. Add whipped cream or ice cream on top. Drizzle with caramel sauce if you want extra sweetness and a little drama on the plate.

Recipe Variations

Gluten-free: Use gluten-free yellow cake mix and confirm your other ingredients list gluten-free on the label.
Dairy-light: Use coconut sweetened condensed milk and plant-based butter; top with dairy-free whipped topping.
Egg-free: Use an egg replacer or 3 tablespoons of aquafaba per egg; texture turns slightly softer but still tasty.
Low sugar: Use a sugar-free or reduced-sugar cake mix and cut the granulated sugar in the pumpkin layer to 1/4 cup.
Extra spice: Add more cinnamon or pumpkin pie spice to the pumpkin layer and sprinkle a little cinnamon over the cake mix.
Chocolate twist: Add 1/2 cup chocolate chips on top of the cake mix before baking.
Nutty crunch: Add 1/2–3/4 cup chopped pecans or walnuts over the top for extra texture.
Maple version: Swap half the granulated sugar with pure maple syrup and reduce sweetened condensed milk by 2 tablespoons.

Ways to Serve Pumpkin Dump Cake with Sweetened Condensed Milk

Warm with vanilla ice cream and a drizzle of caramel sauce.
At room temperature with a big swirl of whipped cream and a sprinkle of cinnamon.
Chilled, sliced into neat squares for potlucks or lunchbox treats.
With a scoop of cinnamon ice cream or pumpkin ice cream for extra fall flavor.
As a brunch dessert alongside hot coffee, chai, or spiced tea.

Storage Success

Let the Pumpkin Dump Cake with Sweetened Condensed Milk cool completely, then cover the pan tightly with plastic wrap or a lid. Store it in the refrigerator for up to 4 days. The flavors deepen, and the texture turns even creamier on day two.

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 and thaw them in the fridge before reheating.