Renee Rendler-Kaplan posted a photo:
1 box of any flavor cake mix
4 overripe mashed bananas (2 cups), OR 2 cups of applesauce, OR 1 15oz can of pumpkin puree.
1 container of frosting (your choice of flavor)
Preheat oven to 400 degrees.
Spray a donut baking pan with Pam. In a large bowl, mix together the mix-in of your choice and a box of cake mix and stir well to combine. Put the thick batter into a ziplock baggie, twist the top to form a piping bag, cut off a tiny bottom corner of the bag and pipe the batter into the donut baking pan. (I went around the circle twice). This made 15 donuts. Bake for 8 minutes. Cool in baking pan on rack for 5 minutes. Lift out donuts and place on a rack over parchment or tin foil etc to catch drippings. When all of the donuts are done, put the frosting into a microwaveable bowl and heat for 20-25 seconds and mix til drippy. Dip ONE donut into the frosting and if you are sprinkling, do it after each dip as the frosting hardens quickly. Place upright back on the rack and then just enjoy them!