Preheat your oven to 350°F (175°C).
In a large bowl, cream together the softened butter and powdered sugar until light and fluffy.
Add the vanilla extract and mix until combined.
Gradually add the flour, salt, and chopped nuts, mixing until just incorporated.
Shape the dough into 1-inch balls and place them on a baking sheet lined with parchment paper.
Bake in the preheated oven for 12-15 minutes, until the edges are lightly golden.
Remove from the oven and let them cool on the baking sheet for 5 minutes.
While still warm, roll the cookies in additional powdered sugar and transfer to a wire rack to cool completely.