Stir in the flour, sesame seeds and ground nuts. Divide dough in half. If dough is too sticky to handle, wrap each half in waxed paper or plastic wrap and chill about 1 hour or until easy to handle. Using 2-inch cookie cutter, cut dough into desired shapes. Place cookies about 1-inch apart on an ungreased cookie sheet.
Transfer cookies to a wire rack to cool.
In a heavy small saucepan, combine the semisweet chocolate and shortening. Heat over low heat until melted, stirring occasionally. Drizzle chocolate mixture over cookies in a decorative manner. Let cookies stand until chocolate is set. All rights reserved.