Preparation Steps
Beat butter in large bowl in an electric mixer until light and fluffy.
Add 1/2 cup powdered sugar and vanilla; beat until well blended.
Beat in flour, then pecans.
Divide dough in half; form each half into ball.
Wrap in plastic and chill for about 30 minutes.
Preheat oven to 350F.
Whisk remaining 1 1/2 cups powdered sugar and cinnamon in pie dish to blend.
Set cinnamon sugar aside.
Working with half of chilled dough, roll dough by 2 teaspoonfuls between palms into balls.
Arrange balls on heavy large baking sheet, spacing 1/2 inch apart.
Bake cookies for 18 minutes or until golden brown on bottom and just pale golden on top.
Cool cookies 5 minutes on baking sheet.
Gently toss warm cookies in cinnamon sugar to coat completely.
Transfer coated cookies to rack and cool completely.
Repeat with other half of the dough.
Sift remaining cinnamon sugar over cookies and serve.