1 pkg. Duncan Hines Butter Recipe cake mix
1 c. (8 oz.) sour cream
1/3 c. oil
1/4 c. sugar
1/4 c. water
4 eggs

FILLING:

2 tbsp. reserved cake mix
2 tbsp. brown sugar
2 tsp. cinnamon
1 c. finely chopped walnuts

Preheat oven to 375 degrees. Combine filling ingredients and set aside. In large bowl combine cake mix, sour cream, oil, 1/4 cup sugar, water and eggs. Beat at high speed for 2 minutes.

Pour 2/3 of the batter in greased and floured 10-inch tube pan. Sprinkle filling ingredients over batter in pan. Spread remaining batter evenly over filling mixture. Bake at 375 degrees for 45-55 minutes until cake springs back when touched lightly. Cool right side up for about 25 minutes, then remove from pan.

GLAZE: Blend 1 cup confectioners sugar and 2 tablespoons milk. Drizzle over cake.