1 lg. pkg. yellow cake mix
1 c. (8 oz.) dairy sour cream
1/2 c. cooking oil
1 tsp. vanilla
1/4 c. sugar
1/4 c. water
4 eggs

Blend all of the above together. Beat 2 minutes on medium speed.

FILLING:

3/4 c. brown sugar
2 tsp. cinnamon
3 tbsp. flour
3 tbsp. melted butter
1 c. chopped nuts (pecans best)

Mix all together with a fork.

TOPPING:

1 c. confectioners' sugar
1/2 tsp. vanilla
2 tbsp. melted butter

Add enough hot water to this so it can be drizzled over top of cake.

Pour 1/2-2/3 of batter in greased and floured 13 x 9 inch pan. Spread with half the filling. Dot (by spoonfuls) and spread the remaining batter over the top. Sprinkle remainder of filling over the top. Bake in preheated 350 degree oven for 40-45 minutes. Test with toothpick. Drizzle topping over top of cooled cake.