2 c. sugar
1/2 lb. butter (8 oz./1 c.)
2 tsp. vanilla
4 eggs
4 c. flour
2 tsp. baking soda
2 tsp. baking powder
1 pt. sour cream (1 lb.)

FILLING:

1 c. brown sugar
2 tsp. flour
2 tsp. soft butter
1/2 c. chopped nuts

Cream sugar, butter, vanilla and eggs for 2 minutes. Add dry ingredients alternately with sour cream. Take all but 6 tablespoons of filling and fold once or twice gently through batter - do not mix or stir.