In a bowl, beat butter, ½ cup powdered sugar, and salt until creamy. Mix in the vanilla and then the flour and pecans.
Scoop dough into 1 tablespoon portions and roll into a ball. Place onto an un-greased baking sheet. Bake for 8-10 minutes or until edges are just barely browned.
Sift powdered sugar over the cookies as soon as they come out of the oven. Let cookies cool on the pan for 5 minutes and then move to a cooling rack. Once cooled completely, roll in a bowl of the remaining ½ cup powdered sugar.
Store in an airtight container once cooled.
Notes
For light and airy cookies, use softened butter in Step 2 and mix until extra fluffy.
Use a cookie scoop or melon baller for perfectly portioned dough.
Refrigerate the dough for 15 minutes after placing it on the baking sheet so they will keep their shape while they bake.
Keep leftovers in an airtight container on the counter for 3 days, in the refrigerator for 2 weeks, and in the freezer for 3 months.