Pumpkin Dump Cake with Sweetened Condensed Milk tastes like pumpkin pie met buttery crumb cake and decided to become the easiest dessert in your kitchen. It works perfectly for busy home bakers who want a cozy fall dessert on the table in about an hour with almost no effort. I first baked this on a Tuesday night in sweatpants, and my family still talks about it like a holiday miracle.
Why Make This Pumpkin Dump Cake with Sweetened Condensed Milk at Home
This pumpkin dump cake uses pantry ingredients, skips pie crust, and still delivers that creamy, spiced pumpkin flavor everyone expects in fall. You stir the pumpkin layer in one bowl, sprinkle cake mix on top, drizzle butter, and the oven does the rest.
Sweetened condensed milk gives the pumpkin layer a custardy, silky texture that tastes richer than using evaporated milk alone. You also slice it like a cake, scoop it like a cobbler, or eat it cold from the pan with a fork while standing at the fridge, which I fully support.
“This Pumpkin Dump Cake with Sweetened Condensed Milk tastes like pumpkin pie and crumb cake had a baby, and I scraped the pan clean. ★★★★★”
Ingredients You Need
Pumpkin layer
- 1 can (15 ounces) pure pumpkin puree
- Use 100% pumpkin, not pumpkin pie filling. I like Libby’s for consistent texture.
- 1 can (14 ounces) sweetened condensed milk
- Any brand works; Eagle Brand and store brands both taste great.
- 3 large eggs, room temperature
- 1 teaspoon vanilla extract
- 2 teaspoons ground cinnamon
- 1 teaspoon pumpkin pie spice
- Or use 1/2 teaspoon ground ginger, 1/4 teaspoon nutmeg, 1/4 teaspoon cloves as a swap.
- 1/2 teaspoon fine sea salt
- 1/2 cup granulated sugar
- You can cut this to 1/3 cup if you prefer less sweetness.
Cake topping
- 1 box yellow cake mix (about 15.25 ounces)
- Spice cake mix also works and gives extra fall flavor.
- 1/2 cup chopped pecans or walnuts, optional
- 3/4 cup unsalted butter, melted and slightly cooled
- Use real butter, not margarine, for best flavor.
Optional finishing touches
- Whipped cream or whipped topping
- Vanilla ice cream
- Caramel sauce
- Extra cinnamon for sprinkling
Pantry shortcuts and substitutions
- Use canned pumpkin and boxed cake mix to keep this recipe weeknight friendly.
- Swap yellow cake mix with spice cake, butter pecan, or white cake mix if that is what you have.
- Use coconut milk sweetened condensed milk for a dairy-light version, but keep the butter for flavor.
- Skip the nuts if you need a nut free dessert, or use pumpkin seeds for crunch.
Equipment list
- 9 x 13 inch baking dish (glass or metal both work)
- 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
- Preheat the oven fully so the pumpkin layer sets correctly and the top browns nicely.
- Grease the baking dish well so slices lift easily and the sugary pumpkin layer does not stick.
- Use room temperature eggs so they mix smoothly with the pumpkin and sweetened condensed milk.
- Stir the pumpkin mixture until smooth, but stop once everything combines to avoid extra air bubbles.
- Spread the pumpkin layer evenly so it bakes at the same rate across the pan.
- Sprinkle the dry cake mix evenly; do not stir it into the pumpkin layer or you lose the cobbler texture.
- Drizzle the melted butter over the cake mix as evenly as possible so you avoid dry powdery spots.
- Add a little extra melted butter over any dry patches during baking if you notice them.
- Do not overbake; pull the cake when the center jiggles slightly but does not slosh, and the top looks golden.
- Let the cake cool at least 20 to 30 minutes so the pumpkin layer sets and slices hold together.
- Chill leftovers to firm the custard layer; serve cold or gently warmed for best texture.
- Use a metal pan if you want slightly crisper edges, or glass if you prefer a softer bottom.
How to Make Pumpkin Dump Cake with Sweetened Condensed Milk
Step 1: Mix the pumpkin custard base
Preheat your oven to 350°F and grease a 9 x 13 inch baking dish with butter or nonstick spray. In a large bowl, whisk together pumpkin puree, sweetened condensed milk, eggs, vanilla, cinnamon, pumpkin pie spice, salt, and sugar. Whisk until the mixture looks smooth and glossy with no streaks of egg or pumpkin. Pour the pumpkin mixture into the prepared baking dish and spread it into an even layer.
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 lightly so it covers the pumpkin from corner to corner. Do not stir; the layers need to stay separate so the texture turns out like a cross between cobbler and crumb cake. If you use nuts, sprinkle them evenly over the dry cake mix.
Step 3: Add melted butter
Melt the butter in a microwave safe bowl or on the stove, then let it cool for 1 to 2 minutes so it does not scorch the cake mix. Drizzle the melted butter slowly and evenly over the entire surface of the cake mix. Aim to moisten as much of the dry mix as possible, especially the corners and edges. Tilt the pan gently if needed to help the butter spread.
Step 4: Bake until golden and set
Place the baking dish on the center rack of the oven. Bake 40 to 50 minutes, until the top looks golden brown and the edges bubble slightly. The center should look mostly set with a small jiggle when you nudge the pan. If the top browns too quickly, cover the pan loosely with foil for the last 10 minutes.
Step 5: Cool and serve
Set the pan on a cooling rack and let the pumpkin dump cake rest at least 20 to 30 minutes. The pumpkin custard layer thickens as it cools, which helps slices hold together. Serve warm, at room temperature, or chilled, depending on your preference. Add whipped cream, ice cream, or a drizzle of caramel sauce right before serving.
Variations I've Tried
-
Spice cake version
Use spice cake mix instead of yellow cake mix and reduce the cinnamon by half. The spices in the mix already bring a lot of flavor. This version tastes extra cozy and works great for holiday dinners. -
Pecan praline version
Stir 1/2 cup chopped pecans into the pumpkin mixture and sprinkle another 1/2 cup on top with the cake mix. The nuts toast in the oven and give a crunchy, almost praline style topping. Add a light drizzle of caramel sauce when you serve it. -
Chocolate chip pumpkin dump cake
Sprinkle 1 cup mini chocolate chips over the pumpkin layer before you add the cake mix. The chocolate melts into the custard and gives a pumpkin chocolate chip vibe. Kids usually claim this version as their favorite. -
Coconut pumpkin dump cake
Use coconut sweetened condensed milk and sprinkle 1/2 cup shredded sweetened coconut over the cake mix. The coconut browns on top and adds a chewy, toasty layer. This version tastes great cold from the fridge. -
Small batch version
Halve the recipe and bake it in an 8 x 8 inch pan. Start checking at 30 to 35 minutes since a smaller pan can bake faster. This size works well when you cook for two or three people and still want leftovers.
How to Serve Pumpkin Dump Cake with Sweetened Condensed Milk
Serve this pumpkin dump cake warm with a big spoonful of whipped cream or a scoop of vanilla ice cream so it melts into the crunchy topping. Add a sprinkle of cinnamon or pumpkin pie spice on top for a bakery style finish. You can also chill the cake and serve neat squares with a dollop of whipped cream for a more structured dessert. I often spoon it into bowls like a cobbler and let everyone top their own portion with ice cream, caramel, or extra nuts.
How to store
- Room temperature: Keep the cake at room temperature for up to 2 hours after baking, then move it to the fridge.
- Fridge: Cover the pan tightly or transfer slices to an airtight container and refrigerate for up to 4 days.
- Freezer: Wrap individual slices in plastic wrap, then place them in a freezer bag or container and freeze for up to 2 months.
- Reheating single servings: Warm a slice in the microwave for 20 to 30 seconds until just heated through, then top with whipped cream or ice cream.
- Reheating a larger portion: Cover the baking dish with foil and warm in a 300°F oven for 15 to 20 minutes, until the center feels warm.
- Serving from chilled: Serve cold straight from the fridge if you like a firmer custard texture, and add toppings right before serving.
Pumpkin Dump Cake with Sweetened Condensed Milk
Ingredients
Instructions
- Preheat the oven to 350°F (175°C) and grease a 9 x 13 inch baking dish with butter or nonstick spray.
- In a large mixing bowl, whisk together the pumpkin puree, sweetened condensed milk, eggs, vanilla, cinnamon, pumpkin pie spice, salt, and sugar until the mixture looks smooth and glossy with no streaks.
- Pour the pumpkin mixture into the prepared baking dish and spread it into an even layer.
- Open the box of yellow cake mix and sprinkle the dry mix evenly over the pumpkin layer, covering it from corner to corner without stirring.
- If using nuts, sprinkle the chopped pecans or walnuts evenly over the dry cake mix.
- Drizzle the melted, slightly cooled butter slowly and evenly over the entire surface, aiming to moisten as much of the dry cake mix as possible, especially the corners and edges.
- Place the baking dish on the center rack of the oven and bake for 40 to 50 minutes, until the top is golden brown, the edges bubble slightly, and the center looks mostly set with a slight jiggle when you nudge the pan.
- Set the pan on a cooling rack and let the pumpkin dump cake cool for at least 20 to 30 minutes so the pumpkin layer sets.
- Serve warm, at room temperature, or chilled, with whipped cream, ice cream, caramel sauce, and a sprinkle of cinnamon if desired.
Notes
Approximate per serving (12 servings): 380 calories; fat 20 g; saturated fat 11 g; carbohydrates 47 g; fiber 1 g; sugars 34 g; protein 5 g; sodium 360 mg. Values are estimates and will vary based on specific brands, optional nuts, toppings, and portion size.
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