Mix butter, sugar, and vanilla thoroughly.  Blend in
flour and salt.  Mix in nuts, using hands if necessary
to thoroughly mix dough.

Shape dough into 1" balls and place 1  1/2" apart on 
cookie sheets.

Bake in preheated 400* oven for 10-12 minutes, until 
just beginning to brown.

While still warm, roll in powdered sugar.

Cool on wire racks.

When cool, roll again in powdered sugar.

Makes 5-6 dozen cookies.

Note:  You can make this recipe vegan by using
soy margarine instead of butter ... but it won't
taste as good.