Sift together 2 cups flour, 1/4 cup sugar and 1/2 teas salt. Then add 1 cup soft margarine (not runny!) and 2 teas vanilla. Blend with pastry cutter. add in 1 cup finely chopped pecans. Roll into balls. Bake at 325 for 25 minutes.
Remove and cool for 5 minutes, then roll in powdered sugar. They keep really well if you store them in an airtight container with powdered sugar.