Moon Cakes - cooking recipe

Ingredients

1/2 lb. butter or margarine
1 1/2 c. sifted flour
1 1/2 c. sugar
6 egg whites
6 egg yolks
2 tsp. baking powder
1 tsp. lemon juice

Preparation

Cream butter well; add sugar gradually.
Add egg yolks and beat well.
Add flour and baking powder a little at a time and blend well with lemon juice.
Fold in beaten egg whites.
Bake in well-greased and floured jelly roll pan.
Bake at 350\u00b0 for about 30 minutes.
Cool completely.
Cut with water glass into moon shapes.