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A close up photo of a tender slice of Pumpkin Dump Cake with a buttery walnut crust on a white plate

Pumpkin Dump Cake


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5 from 20 reviews

Description

This easy Pumpkin Dump Cake combines a luscious, spiced pumpkin custard base with a crisp, buttery golden cake topping. It is the perfect cozy autumn dessert that requires minimal effort and delivers maximum flavor in under an hour.


Ingredients

  • 1 can (15 oz) pure pumpkin puree
  • 1 can (12 oz) evaporated milk
  • 3 large eggs
  • 1 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • 2 teaspoons pumpkin pie spice
  • 1 box (15.25 oz) yellow cake mix
  • 1/2 cup (1 stick) cold salted butter
  • 1/2 cup chopped walnuts


Instructions

  1. Preheat and prep. Preheat your oven to 350°F and lightly grease a 9×13-inch baking dish with non-stick cooking spray.
  2. Whisk the custard. In a large bowl, whisk together the pumpkin puree, evaporated milk, eggs, sugar, vanilla, cinnamon, and pumpkin pie spice until smooth.
  3. Fill the dish. Pour the pumpkin mixture into the prepared baking dish, spreading it into an even layer using a spatula.
  4. Add dry mix. Sprinkle the dry yellow cake mix evenly over the pumpkin layer, ensuring all wet spots are completely covered.
  5. Top with butter. Grate the cold butter evenly over the cake mix and sprinkle the chopped walnuts across the top.
  6. Bake the cake. Bake on the center rack for one hour until the edges are bubbly, the center is set, and the nuts are toasted.
  7. Cool before serving. Allow the cake to rest for 15-20 minutes before serving to ensure the pumpkin custard layer sets properly.

Notes

  • Use pure pumpkin puree rather than pre-seasoned pie filling to maintain control over sweetness and spice levels.
  • Freeze your butter for 15 minutes before grating to make the process easier and achieve a uniform, snow-like distribution.
  • If nuts begin to brown too quickly, tent the baking dish loosely with aluminum foil for the final 15 minutes of baking.
  • Always allow the cake to rest for at least 15 minutes to prevent the custard layer from running when scooped.
  • Prep Time: 10 mins
  • Cook Time: 1 hour
  • Category: Dessert
  • Method: Baking
  • Cuisine: American