Preheat oven to 400 degrees Fahrenheit.

Cream together butter and sugar in a food processor.

Add vanilla extract and salt while processing.

Slowly add flour and finely chopped pecans, pulsing in between additions, until a dough is formed.

Adjust flour amount as needed for desired dough consistency (slightly sticky).

Hand roll bits of dough into 1.5 inch diameter balls.

Layout cookie dough balls on cookie sheets.

Bake at 400 degrees for 15 minutes.

Remove from oven and let cool slightly.

While still warm, roll cookies in confectioner's sugar.

Place cookies on a plate to cool completely.

Store in an airtight container.