1 box yellow cake mix
3/4 c. cooking oil
1/2 c. sugar
1 tbsp. vanilla
4 eggs
1 carton sour cream
1 c. nuts

FILLING:

1/2 c. brown sugar
1 c. nuts
1 tbsp. cinnamon

Mix all ingredients and pour half into tube pan. Add half of filling into batter. Then spread rest of filling on top and bake at 325 degrees.

Optional: Make a powdered sugar and milk glaze to pour over warm cake.