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

Mix separately: 1/2 c. chopped walnuts 1 tsp. cinnamon

Preheat oven to 350 degrees. Cream together sugar and butter; add eggs one at a time and beat until creamy. Add sour cream. Stir in all dry ingredients last. Batter will be very firm like a soft dough. In separate bowl mix sugar, walnuts, and cinnamon; set aside.

Grease and flour tube pan (spring form with hole). Put 1/2 the dough, layer with 1/2 nut mixture, then remaining dough and top with nut mix. Bake 1 hour.