(1). Beat unsalted butter,sugar,cocoa powder and cinnamon in a large bowl . Beat in egg. Stir coffee powder, vanilla and water in a cup to dissolve coffee. Beat into butter mixture. On low speed, mix in flour just until blended.
(2). Divide dough in half and shape into a disk. Wrap and chill until firm.
(3). Preheat oven to 375 degrees F (190 degrees C).
(4). Have ready a 3 inch star cookie cutter. Roll dough on a well floured rolling surface to about 1/8″ thickness. Cut out stars and place 1″ apart on an ungreased cookie sheet. Bake for 8 minutes or until crisp.
(5). Place confectioners’ sugar in a medium sized bowl, gradually stir in hot milk until smooth, stir in 3 tablespoons butter until blended then add remaining ingredients. Makes about 3 cups. Spoon icing into corner of a plastic bag, snip off the tip of the corner, drizzle zigzag design on cookies.
(6). On a lightly floured surface, roll the dough out to 1/4″ thickness. Cut out cookies using a 2″ – 3″ cookie cutter. Place cookies 1″ apart onto a cookie sheet.
(7). Bake for 10 to 12 minutes in the preheated oven, until lightly browned. Remove cookies to wire racks and cool.