Preheat oven to 325F.
In large bowl with an electric mixer,
beat butter with 1/2 c. conf. sugar
until light and fluffy.
Stir in flour, pecans, vanilla and
salt just until blended.
Shape into small balls or crescents.
Place on ungreased baking sheet.
Bake in preheated oven until
very lightly browned.
While cookies are warm,
roll to coat in additional conf. sugar.
Makes about 42 cookies.