1/2 c. butter
1 c. brown sugar
2 c. blueberries
1 c. sifted flour
1 tsp. baking powder
1/8 tsp. salt
3 eggs, separated
1 c. granulated sugar
1/2 c. milk

Melt butter in 9x13 inch baking pan. Spread brown sugar evenly in pan and arrange blueberries on sugar. Sift together flour, baking powder, and salt. Beat egg yolks until light, adding sugar gradually. Add sifted flour and milk alternately. Fold in stiffly beaten egg whites. Pour batter over fruit. Bake at 375 degrees for 30-35 minutes. Turn upside down and serve with whipped cream, if desired.