Blueberry Cake - cooking recipe

Ingredients

1/2 c. butter
2 c. sugar
2 egg yolks
3 c. flour
2 tsp. baking powder
2 beaten egg whites
2 c. blueberries
1 c. milk

Preparation

Cream butter and sugar.
Add egg yolks.
Sift together flour and baking powder. Add alternately to batter with 1 cup milk. Fold in beaten egg whites. Fold in blueberries.
Bake in a 9 x 13-inch greased pan at 375\u00b0 for 35 to 45 minutes.