Two layers of decadent bliss make up this delicious dump cake recipe that is filled with sweet fall pumpkin spice flavor. Pumpkin Dump Cake is super simple to prepare. It has a crushed pecan filled cake-like top layer and a smooth and rich bottom pumpkin layer that tastes similar to pumpkin pie.
In the bowl of an electric mixer fitted with the paddle attachment or using a large bowl and a handheld mixer, combine the pumpkin pie mix, eggs, evaporated milk, sugar, salt, and pumpkin pie spice. Scrape down the sides of the bowl and beat until well combined.
Pour the pumpkin mixture into the prepared baking dish.
Dump the yellow cake mix, flour, sugar, and pecans into a medium-sized mixing bowl and whisk until mixed evenly. Sprinkle on top of the pumpkin mixture.
Add additional pecans to the top of the batter if desired.
In a small bowl melt the butter and pour over the top of the cake as evenly as possible (It won't completely cover the top).
Bake at 350ºF for 60 to 70 minutes or until the center is firm and a golden brown. Let cool for 20 minutes before slicing and serving.