Preheat your oven to 350°F (175°C).
In a mixing bowl, cream the softened butter and powdered sugar until light and fluffy.
Add the vanilla extract and mix well.
Gradually add the flour and salt, mixing until combined.
Fold in the chopped nuts until evenly distributed.
Shape the dough into 1-inch balls and place them on a baking sheet lined with parchment paper.
Bake for 15-20 minutes, or until the bottoms are lightly golden.
Remove from the oven and allow to cool for 5 minutes.
Roll the warm cookies in powdered sugar until well coated.
Let cookies cool completely on a wire rack before serving.