1 c. butter
2 c. sugar
2 eggs
2 c. flour
1 tsp. baking powder
1 tsp. baking soda
1/4 tsp. salt
1 c. sour cream (small, 8 oz.)

Cream butter and sugar. Beat in eggs. Add the rest of the ingredients. In separate small bowl, combine the following:

Filling:

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

Oil or Pam tube pan; put 1/2 filling mixture in bottom. Follow with 1/2 of the cake batter. Repeat filling and then cake batter.

Bake at 325°F for 60 to 65 minutes.