CAKE:

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

Cream the shortening, sugar and vanilla. Add eggs one at a time. Add sour cream. Mix together and add powder, soda, flour and salt. Put 1/2 batter into greased 9 inch pan. Add 1/2 crumb mixture then rest of the batter. Top with remaining crumb topping. Bake for 50 minutes at 350 degrees.

TOPPING:

6 tbsp. butter
2 tsp. cinnamon
1 c. brown sugar
1 c. chopped walnuts