4 egg yolks
1 t. baking powder
1 c. sugar
1/2 c. sour cream
1 t. baking soda
2 sticks butter
4 c. flour

Mix sour cream and baking soda and set aside. Cream butter and sugar. Add eggs. Add sour cream mixture and flour alternately. Roll out on floured surface. Cut into cookies and place on baking sheet, sprinkle with sugar. Bake at 350 for 12 minutes or until golden brown on edges.