Ingredients:

• 1 cup butter, softened
• 1/2 cup powdered sugar
• 2 teaspoons vanilla
• 2 cups all-purpose flour
• 1/4 teaspoon salt
• 1 cup pecans, chopped
• powdered sugar

Directions:

Blend softened butter with powdered sugar. Add vanilla.
Mix in salt, flour and chopped pecans.
Form dough into 1 inch balls or flattened cookies and place on an ungreased cookie sheet.
Bake in a 325 degree oven for 20 minutes. While hot roll in powdered sugar. Let cool and roll again in powdered sugar.

From: http://www.simplyrecipes.com/recipes/walnut_snowball_cookies