Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, cream together softened butter and sifted powdered sugar until light and fluffy.

Stir in pure vanilla extract until fully incorporated.

In a separate bowl, whisk together all-purpose flour and salt, then gradually mix into the butter mixture until just combined.

Fold in the finely chopped nuts until evenly distributed.

Roll small portions of dough into 1-inch balls and place on the prepared baking sheet.

Bake for 12-15 minutes, until the bottoms are lightly golden.

Let the cookies cool on the baking sheet for 5 minutes before transferring to a wire rack.

While warm, roll in powdered sugar and then again after completely cool.