Sour Cream Cake

For the cake:
1 (1 lb.) box powdered sugar
2 t. vanilla
1 c. chopped nuts, if desired
1 c. sour cream
1/2 c. sugar
1 pkg. Duncan Hines butter cake mix
3/4 c. oil
4 eggs

For the filling:
4 T. brown sugar
2 t. cinnamon

Mix all of the cake ingredients.
Mix the brown sugar and cinnamon for the filling. 
Pour 1/2 of batter into pan.
Sprinkle filling over the batter you poured into the pan.
Pour the rest of the batter on top of the filling.
Bake for an hour or until done, 350°.
Good luck!

Serves