Russian Tea Cakes

Chop walnuts with a knife or in a blender until finely ground. In a bowl, mix at medium-high the butter and sugar together until light and fluffy. Add flour a little at a time and mix on medium speed until smooth. Add cinnamon (and salt) and mix throughly. Add ground walnuts and mix. Dough should be crumbly but hold together when rolled. Shape dough into small balls 3/4 nice wide and place on cookie sheet. Bake at 350 degrees for 15 minutes. Cookies are done with the bottoms are brown. Let the cookies cool for about 5 minutes then roll each cookie in confectioners' sugar.