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

Cream butter and sugar. Add eggs, sour cream and dry ingredients. Pour into buttered pan. Sprinkle top with crumb mixture.

CRUMB MIXTURE:

1/4 c. sugar
2 tsp. cinnamon
3/4 c. chopped nuts

Cut in with a knife. Bake at 350 degrees for 45 minutes.