To a spice cake mix and I added; 4 eggs, 1/4 c oil, 1 c water, 4 mashed ripe bananas. I mixed it with an electric mixer until well combined and then stirred in 1/2 c of raisins. I poured it into a greased bundt pan and baked it for 55 minutes in a 350 degree oven.
I had a bit of a problem deciding whether it was done! Better add toothpicks to my grocery list!
I expected it to bake up more, but it turned out short and thick. It's really really good and hits the spot, but probably needs an expert to adjust it. Still surprised no one else though a banana raisin snack cake sounded like a good ideas.