I got this recipe 17 years ago while taking a cake decorating class in Green Bay. The instructor told us that NOTHING would stick if we used this. It is true. I had forgotten about this until my friend used something similar a few weeks ago. Try this and cakes will come out of the pan cleanly.
1 c oil
1 c solid crisco
1 c flour
Mix all together well and store in air tight container. Use in place of cooking spray.