1/2 c. butter
3/4 c. sugar
1 tsp. vanilla
3 eggs, beaten
2 c. flour
1 tsp. baking powder
1 tsp. baking soda
1 c. sour cream
1 can pumpkin (16 oz.)
1 egg, slightly beaten
1/3 c. sugar
1 tsp. pumpkin pie spice

STREUSEL TOPPING:

1 c. packed brown sugar
2 tsp. cinnamon
1/3 c. butter
1 c. nuts, chopped

Cream butter, sugar and vanilla in a bowl. Add 3 beaten eggs, beat well. Combine flour, baking powder and soda. Add to butter mixture, alternating with sour cream. Set aside. Combine pumpkin, 1 beaten egg, sugar and pumpkin pie spice. Set aside. Prepare topping by combining dry ingredients and cutting in the butter. Pour half of the batter into a 13 x 9 inch baking dish. Spread to cover the pan. Sprinkle half the topping mixture onto batter. Spread pumpkin mixture over top. Spread remaining batter over pumpkin mixture. Spread the rest of the topping on top of batter. Bake at 325 degrees for 50 to 60 minutes, or until toothpick inserted in center comes out clean.