Mix powdered sugar, margarine, egg, vanilla and almond extract. Mix in flour, baking soda and cream of tartar. Cover and refrigerate at least 2 hours. Divide dough into halves. Roll each half 3/16 inch thick on lightly floured cloth-covered board. Cut into shapes.
Sprinkle with granulated sugar; place on lightly greased sheet. Bake until edges are light brown, 7 to 8 minutes.
Notes
Roll out in powdered sugar not flour After you roll out the dough, cover with plastic wrap and put a cookie sheet with ice cubes in it on top for 10-12 minutes. The dough gets cold and makes cutting out the cookies much easier!