Preheat your oven to 350°F (175°C) and prepare a baking sheet by lining it with parchment paper.

Cream the softened butter and powdered sugar in a large mixing bowl using an electric mixer until light and fluffy, about 2 minutes.

Stir in the vanilla extract until fully incorporated.

Combine flour and salt in a separate bowl, then gradually add to the butter mixture, mixing until just incorporated.

Fold in the finely chopped nuts until evenly distributed.

Shape the dough into 1-inch balls and place them on the prepared baking sheet.

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

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

Roll them in powdered sugar while warm, and again once completely cool.