1/2 c. butter
1 c. sugar
2 eggs
1/2 tsp. salt
1 tsp. vanilla
2 c. flour
1 tsp. baking soda
1 tsp. baking powder
1 c. (1/2 pt.) sour cream

Cream butter and sugar. Add eggs one at a time, beating well. Add dry ingredients to mixture. Mix dry ingredients and sour cream alternately to creamed butter mixture, beginning and ending with dry ingredients. Stir in vanilla. Pour 1/2 of batter into buttered tube pan.

TOPPING:

1/3 c. brown sugar, packed
1/4 c. white sugar
1 tsp. cinnamon
1 c. walnuts, chopped

Pour 1/2 topping over 1/2 of batter in tube pan. Pour remaining batter over filling and top with rest of the nut mixture. Bake 325 degrees 40 minutes.