@debscakecreations
Since the mixture has no egg or dairy, it will keep refrigerated few weeks to one month.
But if you are not an avid baker make the mix 1 Tablespoon at the time (enough for few pans).
I like to add:
For chocolate cakes, use only half flour and add the other half cocoa powder. In this way the cake won’t have the white floury flakes on the surface.
1 Tablespoon Crisco
1 Tablespoon Oil
1 teaspoon flour
1 teaspoon cocoa powder
Mix well and brush inside the pans.