1 stick butter
1 c. sugar
2 eggs
1 c. sour cream
2 tsp. vanilla
2 c. flour
1 tsp. baking soda
1 tsp. baking powder
1/4 tsp. salt

TOPPING:

1 c. chopped walnuts
1/2 c. sugar
1 tsp. cinnamon

Preheat oven to 350 degrees. Sift together 2nd 4 ingredients. Add first 5. Spread half of batter in greased and floured Bundt pan. Sprinkle half of the topping. Cover with rest of batter. Sprinkle remaining topping on top. Bake 45-50 minutes. Cool 10 minutes. Remove cake so topping is on top of cake.