Kris had mentioned using canned pumpkin with a box of spice cake mix in the comments from my post on gingerbread with homemade spice cake mix last week. Kris said she uses 1 box of spice cake mix, 1 can of pumpkin puree, and 1/2 cup of water, mixed together then baked in a 9 X 13-inch baker. I said I might give it a try with my homemade spice cake mix. I did. And it worked beautifully and was delicious!
Here's what I did:
I had a little homemade spice cake mix leftover but not nearly enough for this application. So I made another batch and added it to my leftover mix, until I had about 3 1/3 cups of homemade spice cake mix (the amount that is roughly what you get in a commercial box of cake mix).
I stirred in one 15-oz can of pumpkin puree and a little over 1/2 cup of water (about 1 extra tablespoon until the mixture looked spreadable, like brownie batter).
I spread this mixture in a buttered 9 X 13-inch Pyrex baking dish. It was a thick batter, not thin like regular cake batter.
I baked it at 350 F for almost exactly 30 minutes, using a toothpick to determine doneness.
After it cooled, I topped it with the cream cheese topping below.
Reduced-Sugar Cream Cheese Frosting (enough for 12 cupcakes or a thin layer on a 1/4 sheet cake -- 9 X 13 inch)
Mix together until smooth:
- 4 ounces of cream cheese, softened
- 2 to 3 tablespoons butter, very soft
- 1/2 teaspoon vanilla
- 1/4 teaspoon cinnamon
- 1/4 teaspoon nutmeg
- 1/3 cup powdered sugar