Pre-heat oven to 400 degrees Fahrenheit.
In a large mixing bowl, mix together 1 cup of the powdered sugar, the butter, and pure vanilla extract. If you have an electric mixer (this is easiest), use the paddle attachment and mix at medium speed.
Add in the flour, nuts, and salt. Mix until the dough holds together.
Shape dough into 1 inch balls - I like to use a tablespoon or OXO's small cookie scoop to get me started and then roll the dough into balls with my hand. Place the balls about 1 inch apart on an ungreased cookie sheet. I like to use parchment as the clean up is much easier if you do.
Bake for 10 to 12 minutes, or until set, but not brown. Remember - everyone's oven is a bit different so monitor carefully.
Roll into the additional powdered sugar while the cookies are still warm and then let cool completely on a wire baking rack.
After the cookies have cooled, roll them into the powdered sugar once again.
Optional: If you are serving these to guests, put them in a chic little tasting cup as shown in the photo above. I got these on one of my favorite home decor sites - One Kings Lane. They were practically a steal at $17.50 for 6 of them.
I like pecans most in this recipe, but walnuts could also work well if you don't like pecans. I hope you all enjoy!