|Photo from http://www.kitchentreaty.com/fluffy-nutella-buttercream-frosting/|
- Melt the butter and shortening then add the cocoa powder
- Stir sugar, eggs, vanilla, and flower together
- Combine egg mixture with cocoa mixture
- Stir in nuts (if you are using them)
- Bake in 2 9x13 (lasagna) greased dishes at 350 for 35-45 min.
- Cool for 2 hours in baking pans and then frost and cut. (makes 60)