1 cup soft margarine or butter 
1/2 cup powdered sugar 
1/2 teaspoon salt 
1 teaspoon vanilla extract 
2 cups all purpose flour 
1-1/2 cups finely chopped walnuts 
additional powdered sugar 

Mix margarine (or butter) with sugar until creamy. Add salt, extract, flour, nuts: mix well. Refrigerate until easy to handle. Heat oven to 350 degrees. Using fingers, shape dough into 1" balls. Place on ungreased cookie sheet. Bake 10-12 minutes or until light brown. While cookies are warm, roll in  powdered sugar. These keep well.