Pressed Butter Cookies
["1 c. soft butter or margarine (2 sticks)", "2/3 c. sugar", "3 egg yolks", "1 tsp. flavoring (almond or vanilla)", "2 1/2 c. flour, sifted"]
["Mix thoroughly the first 4 ingredients.", "Then work in the sifted flour.", "Add additional flour, if needed, to make dough stiff enough to go through cookie press.", "Drop onto ungreased cookie sheet.", "Bake at 400\u00b0 for 7 to 10 minutes, just until cookie dough is set but not browned.", "Remove on cookie rack.", "Store in closed container."]
["butter", "sugar", "egg yolks", "vanilla", "flour"]