1 c. butter
2 c. sugar
2 egg yolks
1 c. milk
1/4 tsp. salt
1 tsp. baking soda
4 1/2 c. flour
1 tsp. vanilla
2 egg whites, stiffly beaten

Combine all ingredients, but beaten egg whites (fold in at last). Drop on greased cookie sheet 3 inches apart. Sprinkle sugar on top. Bake at 375 degrees for 15 minutes. Makes 3 dozen cookies.