2 cups all-purpose flour
1 1/2 cups sugar
1/2 cup (1 stick) butter, chilled
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 cup for topping.

Add baking powder, milk and egg yolks to remaining mixture; mix well. Beat egg whites until soft peaks form; fold into batter. Pour into a greased 13x9x2-inch baking dish. Sprinkle with blueberries and reserved crumb mixture.

Bake at 350°F for 30 to 35 minutes or until golden brown and a toothpick inserted near the center comes out clean.

Makes 15 to 18 servings.