1/4 c. butter
1 egg
2 tsp. baking powder
1/2 tsp. salt
2 c. blueberries (1 pt.)
3/4 c. sugar
2 c. sifted flour
1/2 c. milk

CRUMB TOPPING:

3 tbsp. butter
1/2 c. sugar
1/2 c. flour
1/2 tsp. cinnamon

Cream butter, add sugar and beat until light by hand. Add egg, beat well. Add sifted dry ingredients alternately with milk, beating until smooth. Fold in blueberries. Sprinkle top with crumb topping. Mix crumb topping together by hand until crumbly. Bake in greased 9 x 9 x 2 inch pan at 375 degrees for 35 minutes or longer.