Refrigerator Cookies II

1 cup butter1 cup sugar2 egg yolks, beaten1 egg white, beaten stiff1/2 tsp. lemon extract2-1/4 to 2-1/2 cups sifted flour Cream butter, add sugar gradually and mix well. Add egg yolks, stiffly beaten egg white and extract. Gradually add flour, blending in well. Put through a cooky press into ungreased cooky sheets. Bake at 400…