I am comfortable with the cake mix cakes rather than measuring and sifting flours and starting from the scratch, but everytime I make a difference in it either by adding nuts, choclate chips. This time I mixed white cake mix with the recommended oil , water and eggs and divided the batter into two . In one half I added cinnamon sugar mix . I poured the plain batter first in the cake pan , levelled it and poured the cinnamon mixed batter on top. This added some color and appeal to the plain cake and of course I loved the cinnamon in it.