This is a popular pumpkin cake you can find on many websites and I have tried those recipes myself by baking it in the oven and my cake came out delicious! So, I had this idea to make it in the crockpot and low and behold you won't believe what I found out.... This Pumpkin Crunch Cake is even better baked in a crockpot rather than in the oven. I don't know why but it came out more like a pumpkin crunch cake than a pumpkin crunch dump cake, which that's essentially what it is. So, we're going to make an easy crunch dump cake in the crockpot but your result is going to be a pumpkin crunch cake. Does that make sense? If not, no worries after you make it in the crockpot it will. Let's make it!
Grease your crockpot (I used a 6 quart crockpot) with butter or non-stick cooking spray.
To the crockpot add in the can of pumpkin puree and evaporated milk. Whisk that together until combined. Also, whisk 3 eggs, add them into the crockpot, and give that another whisk until everything is combined. Then, add in the pumpkin pie spice, cinnamon, brown sugar, and vanilla extract. Whisk that until fully combined.
In a bowl add yellow cake mix and melted butter. Mix that together using a fork or your hands to make a crumble. Sprinkle that crumble all over the top of the pumpkin mixture in the crockpot. Then sprinkle the chopped pecans over top of the crumble.
Pop the lid on the crockpot and cook on high for 2 & ½ - 3 hours or until it's cakey and no longer jiggly. Serve with ice cream and enjoy!