2 cups flour
1 1/2 cup sugar
1/2 cup cold butter
1 tsp baking powder
1 cup milk
2 eggs, separated
2 cups fresh or frozen blueberries

In a mixing bowl combine flour and sugar. Cut in butter until crumbly. Set aside 3/4 for topping. Add baking powder, milk and egg yolks to remaining mixture and mix well. Beat egg whites until soft peaks; fold into batter.

Pour into greased 9 X 13 pan. Sprinkle with blueberries then reserved crumb mixture.

Bake at 350°F for 30 - 35 minutes or until golden brown and a toothpick inserted near center comes out clean. While still warm, drizzle with 3 tbsp of glaze (milk, powdered sugar and vanilla) if desired.