1 c. chopped pecans
2/3 c. brown sugar
2 tbsp. butter, melted
1 1/2 tsp. ground cinnamon
1 (27 oz.) pkg. cinnamon streusel cake mix
1/2 c. sour cream

Prepare cake mix according to directions, stir in sour cream. Spread 2/3 (4 cups) of batter into greased and floured 9 x 13 inch pan. Sprinkle with streusel mix from package. Pour on remaining batter. Sprinkle on reserved nut topping from mix. Bake at 350 degrees for 40 minutes. Make glaze from cake mix. Drizzle over warm cake.