3/4 c. butter
1 1/2 c. sugar
3 eggs
3 tsp. vanilla
3 c. flour
1 1/2 tsp. baking powder
1 1/2 tsp. baking soda
1/4 tsp. salt
1 1/2 c. sour cream

FILLING:

1/2 c. brown sugar
1 c. nuts
1 1/2 tsp. cinnamon

Heat oven to 350 degrees. Grease 4x10 inch pan. Combine butter, sugar, eggs, and vanilla. Beat at medium speed for 2 minutes. Mix flour, baking powder, soda, and salt in egg mixture alternately with sour cream. Put butter, then filling alternately in pan. Bake for 1 hour.