1 c. butter
1 c. sugar
2 eggs
1 tsp. vanilla
2 c. flour
1 tsp. baking powder
1 tsp. baking soda
1 c. sour cream

TOPPING:

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

Preheat oven to 350 degrees. Grease bundt pan or 13 x 9 inch pan. Cream together butter, sugar, eggs, and vanilla. Sift together flour, baking powder, and baking soda. Add dry ingredients to creamed, alternating with the 1 cup sour cream. Spread 1/2 of batter into pan. Sprinkle half of the topping mixture, then pour over the remaining batter. Sprinkle the rest of the topping on the top. Bake 30 to 45 minutes and until toothpick comes out clean.