I was told by a cake decorator when using a box mix you should use crisco and instead of flour use a bit of the dry mix as the flour, especially good for choc cake because you dont have that white flour on the outside of the cake.
I was told by a cake decorator when using a box mix you should use crisco and instead of flour use a bit of the dry mix as the flour, especially good for choc cake because you dont have that white flour on the outside of the cake.