1 box Duncan Hines butter cake mix
1/2 c. sugar
1 c. nuts
1 c. sour cream
1 tsp. vanilla
4 eggs, 1 at a time
2 tbsp. brown sugar
2 tsp. cinnamon/sugar mixture

Mix cake mix, sugar and nuts; add vanilla. Add oil, sour cream. Put half of batter in tube pan. Sprinkle all but 1 teaspoon of cinnamon/sugar mixture over batter in pan. Add remainder of batter and sprinkle balance of cinnamon/sugar on top. Bake 1 hour at 350 degrees. Cool in pan.