3 c. flour
1 tsp. baking soda
1/2 lb. butter
1/2 pt. sour cream
1 can blueberry pie filling
1 tsp. baking powder
1 c. sugar
2 eggs
1 tsp. vanilla

Sift flour, baking powder, soda and sugar together. Blend together butter, eggs, sour cream and vanilla. Batter will be thick. Spread less than half the batter in greased 9 x 13 inch pan. Spoon blueberry filling over this. Spread rest of batter over filling. Sprinkle with following topping: 1/2 c. sugar 3 tbsp. butter

Blend until crumbly. Bake at 375 degrees for 45 minutes.