Pumpkin Oatmeal Dump Cake Recipe

Pumpkin Oatmeal Dump Cake is the kind of dessert that makes fall baking feel wonderfully easy. It has everything I want in a cozy seasonal treat: warm pumpkin flavor, plenty of spice, a soft filling, and a buttery oat topping that bakes up with just the right amount of texture. It feels like a cross between pumpkin pie, crisp, and cake, which is exactly why it disappears so fast whenever I make it.

This is one of those desserts that works for just about any occasion. It is simple enough for a casual weeknight craving, but special enough to bring to a holiday table or fall gathering. Best of all, it comes together with minimal fuss, making it ideal when you want something homemade without spending all day in the kitchen.

Why I Love This Recipe

What I love most about Pumpkin Oatmeal Dump Cake is how comforting it is. The pumpkin base is rich and creamy, while the oat topping adds that golden, buttery finish that makes every bite feel extra satisfying. It has all the cozy flavors of autumn in a dessert that is much easier than making a pie from scratch.

I also love that it is a great recipe for feeding a group. It bakes in one dish, scoops easily, and can be served warm with whipped cream or ice cream. It is low-stress, high-reward baking, which is always my kind of recipe.

Ingredients

For the Pumpkin Layer

• 1 can pumpkin puree
• 3 large eggs
• 1 cup evaporated milk
• 3/4 cup granulated sugar
• 1/2 cup brown sugar
• 1 teaspoon vanilla extract
• 1 1/2 teaspoons ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/4 teaspoon ground ginger
• 1/4 teaspoon salt

For the Topping

• 1 box yellow cake mix
• 1 cup old-fashioned oats
• 3/4 cup unsalted butter, melted
• 1/2 cup chopped pecans, optional

Swaps and Notes

• Pumpkin puree: Make sure to use pure pumpkin, not pumpkin pie filling.
• Oats: Old-fashioned oats give the topping the best hearty texture.
• Cake mix: Yellow cake mix keeps it classic, but spice cake mix can make it even more autumn-forward.
• Pecans: These are optional, but they add a great crunch and a little nutty richness.
• Spices: You can swap the individual spices for pumpkin pie spice if that is what you have on hand.

One important note: this dessert is meant to be layered, not stirred together. That is what gives it the classic dump cake texture with a soft base and crisp topping.

How to Make Pumpkin Oatmeal Dump Cake

1. Preheat the oven: Set your oven to 350°F and grease a 9×13-inch baking dish.
2. Mix the pumpkin layer: In a large bowl, whisk together the pumpkin puree, eggs, evaporated milk, granulated sugar, brown sugar, vanilla extract, cinnamon, nutmeg, ginger, and salt until smooth.
3. Pour into the dish: Spread the pumpkin mixture evenly into the prepared baking dish.
4. Add the dry topping: Sprinkle the dry cake mix evenly over the pumpkin layer.
5. Add oats and nuts: Scatter the oats over the cake mix, followed by the chopped pecans if using.
6. Drizzle with butter: Pour the melted butter evenly over the top, trying to cover as much of the dry mixture as possible.
7. Bake: Bake for 45 to 55 minutes, or until the top is golden and the center is set.
8. Cool slightly: Let the dump cake rest for 10 to 15 minutes before serving.
9. Serve: Scoop warm into bowls and top with whipped cream or vanilla ice cream if desired.

Tips for Success

The best tip for dump cake is to distribute the melted butter as evenly as possible over the top. That helps prevent dry patches and gives you a more evenly golden finish. If you notice a few dry spots before baking, a little extra butter can help.

Another helpful tip is to let the dessert cool slightly before serving. The pumpkin layer sets up more as it rests, which makes it easier to scoop and gives you that perfect creamy-meets-crumbly texture.

If you want an even crunchier topping, add pecans or a light sprinkle of brown sugar over the oats before baking.

Serving Suggestions and Pairings

This dessert is especially good warm with whipped cream or a scoop of vanilla ice cream. It also pairs beautifully with coffee, chai, or hot apple cider for a full fall dessert moment.

If you are putting together an autumn dessert spread, This Pumpkin Delight Dessert Is My Favorite No-Bake Fall Treatis a great creamy companion. For more pumpkin baking ideas, These Easy Pumpkin Spice Muffins Are My Favorite Fall Treat to Bake on Repeat are perfect for breakfast, snacking, or casual entertaining.

To round out a holiday table, I also love serving this alongside These Caramel Apple Pie Cookies Are My Favorite Fall Treat in Bite-Sized Form and These Pecan Pie Bars Are My Favorite Make-Ahead Holiday Dessert. And if you want something classic and crowd-friendly for larger gatherings, This Big Family Banana Pudding Is My Favorite Classic Dessert to Feed a Crowd is always a good idea.

Nutritional Information Per Serving

Estimated for 12 servings:

• Calories: 340
• Protein: 4g
• Carbohydrates: 45g
• Fat: 16g
• Saturated Fat: 9g
• Fiber: 2g
• Sugar: 27g
• Sodium: 310mg

These values are approximate and may vary depending on the exact cake mix and toppings used.

Storage and Leftover Tips

Store leftover Pumpkin Oatmeal Dump Cake covered in the refrigerator for up to 4 days. Reheat individual servings in the microwave, or warm larger portions in the oven until heated through.

This dessert is especially good the next day, when the pumpkin layer has had even more time to settle and the flavors deepen. For the best texture, I like reheating it slightly before serving and adding fresh whipped cream on top.

You can also make it ahead for gatherings and keep it chilled until ready to warm and serve.

More Recipes You Will Love

If you enjoy easy, cozy fall desserts, here are a few more approved ChefManiac recipes to save:

• This Pumpkin Delight Dessert Is My Favorite No-Bake Fall Treat
• These Easy Pumpkin Spice Muffins Are My Favorite Fall Treat to Bake on Repeat
• These Caramel Apple Pie Cookies Are My Favorite Fall Treat in Bite-Sized Form
• These Pecan Pie Bars Are My Favorite Make-Ahead Holiday Dessert
• This Big Family Banana Pudding Is My Favorite Classic Dessert to Feed a Crowd

Final Thoughts

Pumpkin Oatmeal Dump Cake is exactly the kind of dessert I want in my fall baking rotation. It is easy, warm, comforting, and packed with the kind of flavor that makes every bite feel like autumn. With its creamy pumpkin base and buttery oat topping, it hits that sweet spot between rustic and crowd-pleasing.

It is the sort of dessert that feels right at home on a holiday table, but it is easy enough to make anytime the pumpkin craving hits. If you bake this one, I would love to hear how you served it and whether you added pecans or kept it simple. Follow along for more cozy, crowd-pleasing recipes from Jason Griffith at ChefManiac.