Blueberry Cake- melt in your mouth....

Ingredients

1/2 cup butter 1/2 cup white sugar 1/4 teaspoon salt 1 teaspoon vanilla extract 2 egg yolks 1 1/2 cups all-purpose flour 1 teaspoon baking powder 1/3 cup milk 2 egg whites 1/4 cup white sugar 1 1/2 cups fresh blueberries 1 tablespoon all-purpose flour 1 tablespoon white sugar

Directions

Preheat oven to 350 degrees F (175 degrees C). Grease and flour an 8 inch square pan.
Cream butter or margarine and 1/2 cup sugar until fluffy. Add salt and vanilla. Separate eggs and reserve the whites. Add egg yolks to the sugar mixture; beat until creamy.
Combine 1 1/2 cups flour and baking powder; add alternately with milk to egg yolk mixture. Coat berries with 1 tablespoon flour and add to batter.
In a separate bowl, beat whites until soft peaks form. Add 1/4 cup of sugar, 1 tablespoon at a time, and beat until stiff peaks form. Fold egg whites into batter. Pour into prepared pan. Sprinkle top with remaining 1 tablespoon sugar.
Bake for 50 minutes, or until cake tests done.