2 c. flour
1 tsp. baking powder
1/2 tsp. salt
1/4 c. butter
3/4 c. sugar
1 egg
1/2 c. milk
2 c. blueberries
1/2 c. sugar
1/4 c. flour
1/2 tsp. cinnamon
1/4 c. butter

Mix all but the last 4 ingredients together. Pour into a 9x9 inch pan.

Mix together 1/2 cup sugar, 1/4 cup flour, cinnamon and 1/4 cup butter and sprinkle over cake. Bake at 375 degrees for 35-40 minutes.