1/2 c. butter
1 c. sugar
3 eggs, slightly beaten
1 tsp. baking powder
1 tsp. baking soda
1/4 tsp. salt
2 c. flour, unsifted
1 c. sour cream
2 c. fresh or frozen blueberries

TOPPING:

1 c. brown sugar
1/4 c. butter
1/4 c. flour

Cream butter and sugar. Add next 4 ingredients. Alternately add flour and sour cream to the egg mixture with a spoon. Fold in blueberries. Pour mixture into greased 9 x 13 inch baking dish.

Topping: Cream brown sugar and butter. Add flour to get a semi-dry mixture. Spread on top of batter. Bake in 350 degree oven for 30 minutes.