Preheat your oven to 350°F (175°C).
In a large mixing bowl, cream the softened butter and powdered sugar until light and fluffy.
Add vanilla extract and mix well.
In a separate bowl, whisk together the flour and salt.
Gradually add the flour mixture to the butter mixture and stir until just combined.
Fold in the chopped nuts until evenly distributed.
Scoop tablespoon-sized portions of dough and roll into balls.
Place the cookie balls on a baking sheet lined with parchment paper, spacing them about 2 inches apart.
Bake for 20-25 minutes, or until the bottoms are lightly golden.
Allow cookies to cool slightly, then roll them in powdered sugar while still warm.