Mexican Wedding Cookies

1 Cup Butter (softened)
1/2 Cup Sifted Powdered Sugar
1 Tsp Vanilla
2 1/4 Cups Sifted Flour
1/2 Tsp Salt
3/4 Cup Finely Chopped Nuts

Mix together thoroughly butter, powdered sugar, and vanilla. Sift together flour and salt and stir in. Add finely chopped nuts and stir in. Chill dough. Roll into 1 inch balls. Place on ungreased cookie sheet. Preheat oven to 400 degrees and bake until set, but do not brown.
While still warm, roll in additional powdered sugar. Cool, roll in powdered sugar again.
Make about 4 dozen cookies.