I bake in small quantities just for family and like to extend my mix to a mix and a half for my 2 inch pans while adding sour cream for extra homemade flavor.
Here is the "extender plus enhancer"
Prepare cake mix as per package directions. In addition
to this add:
1 cup flour
8 oz sour cream
1 cup white sugar
1/3 tsp. salt
1 tsp. vanilla or other flavoring of choice
*you could add dry pudding to this as well. If I do it, I only add a few tablespoons. Otherwise, using the whole pkg makes me feel like I get a cake that is too wet or gummy for my taste.*
Bake as per pkg directions