1 box yellow cake mix
1 c. vegetable oil
1 c. sour cream
4 eggs
1 box instant vanilla pudding

Put yellow cake mix in bowl and beat in remaining ingredients in the order listed. After all are added, beat for 6 minutes at medium speed. Turn half of batter into a greased tube pan or Bundt pan. Sprinkle with half of the topping mixture. Spread remaining batter over this and sprinkle with remaining topping. Bake 50-60 minutes at 350 degrees. Serves 12.

TOPPING:

4 tbsp. sugar
4 tbsp. flour
2 tsp. cinnamon
1/2 c. chopped nuts

Mix topping ingredients together and use as filling and topping for coffee cake.