Preheat your oven to 350°F. Line a baking sheet with parchment paper and set aside.

Cream the butter and confectioner's sugar together using an electric mixer until light and fluffy. Add in the flour and vanilla extract, mixing until everything is well combined. Gradually stir in the chopped pecans.

Scoop teaspoon-sized portions of the cookie dough and roll them between your palms to form small balls. Place the dough balls onto the prepared baking sheet.

Bake for about 12 minutes, or until the cookies are lightly golden. Remove from the oven and let them cool slightly. Roll the warm cookies in additional confectioner's sugar.

Once completely cooled, roll or dust the cookies with a bit more confectioner's sugar if desired before serving.