Bake for 20 minutes, or until cookies are dry but not brown. Cool on rack. The Shortbreads are great plain or you can frost them with chocolate or icing. Stir in the shortening. Dip one end of each cookie into chocolate.
Place cookies on parchment lined baking sheet and chill in refrigerator to harden chocolate.
Stir until the sugar is melted and smooth. Remove from heat. If the frosting is too thick to spread just add a few drops of water until you get a spreadable consistency. You can spread the frosting by using a small knife or paint brush. You can also put the frosting in a pastry bag with a small round tip and pipe lines or dots on cookies.