2 c. all-purpose flour
2 tsp. baking powder
1/2 tsp. salt
1/4 c. butter
3/4 c. sugar
1 lg. egg
1/2 c. milk
1 pt. blueberries

Stir together the flour, baking powder and salt; set aside. Cream the butter and sugar; beat in the egg until blended. Add flour mixture and the milk; stir only until flour mixture is moistened. Fold in the blueberries.

Turn into a buttered 9x9x1 3/4-inch cake pan. Sprinkle with the Streusel (below). Bake in a preheated 375 degree oven 45-50 minutes or when cake tester comes out clean. Cut in squares.

STREUSEL:

Stir together 1/2 cup firmly packed light brown sugar, 3 tablespoons flour, 2 tablespoons cinnamon. Cut in 3 tablespoons butter until particles are fine and stir in 1/2 cup finely chopped walnuts.