For the Cake:
- 1/2c canola oil
- 1/2c butter, melted
- 1 1/2c brown sugar
- 1 1/2c sugar
- 1 (15oz) can pumpkin puree (NOT pie filling)
- 2/3c sour cream (I used light)
- 1tsp vanilla
- 4 eggs
- 1 1/4tsp cinnamon
- 1/2tsp nutmeg
- 1/4tsp ground ginger
- 1/4tsp cardamom (optional)
- 1 1/2tsp salt
- 3 1/2c flour
- 1tsp baking soda
For Dreamy Brown Sugar Frosting:
- 1 (8oz) pkg. cream cheese
- 3/4c brown sugar
- 2tsp vanilla
- 2c heavy whipping cream
For the cake:
- In a large bowl, whisk together oil, butter, and sugars (this should be like thick, wet sand). Stir in pumpkin puree, sour cream, and vanilla. Add eggs, one at a time, until well incorporated.
- In a medium bowl, sift cinnamon, nutmeg, ginger, cardamom, salt, flour, and baking soda. Add dry ingredients to wet/pumpkin mixture and stir until well combined.
- Prepare a standard cookie sheet (13″x18″) with nonstick spray. Cover with parchment paper (VERY important if making into a layer cake).
- Pour batter into cookie sheet and spread to make a smooth, even surface.
- Bake at 350 degrees 20-25 minutes, or until a toothpick inserted in the center comes out clean. Allow to cool completely before cutting or frosting.
To convert into a layer cake:
- Cut a 1 1/2″ strip off of the entire border of the cake and remove (this will eliminate the rounded edges). Cut the remaining cake into three equal-sized pieces. Stack cake layers and frost as desired. Snack on any remaining edge pieces.
- While cream cheese is still in it’s package, use your hands to soften it until it is just pliable (you want it to stay cold). Unwrap and place in a large bowl with brown sugar and vanilla (you can also use a stand mixer). Use a hand mixer and beat cream cheese, brown sugar, and vanilla on medium speed until mixture has lightened in color somewhat and the sugar has dissolved. (When you rub a small amount between your fingers, you should not feel any sugar grains).
- When brown sugar/cream cheese mixture is smooth, add in about 1/2c cream and mix on medium speed until well incorporated. Add in a little more cream and repeat until all cream is incorporated. The texture should be light and feel like thick whipped cream.
- Use to frost pumpkin bars or layer cake.
*If you’d rather not make it into a layer-cake, are pressed for time, or need to feed a crowd, you can actually just frost the cake in the cookie sheet as pumpkin bars and serve it that way.
*If you make it into a layer cake, as I did, be sure to cut thin slices when serving. Three layers makes for a lot of cake per slice, and thin slices give you just the right amount per person.
*Be sure to store leftovers in the refrigerator, if possible.