Step 1

In a large bowl of a stand mixer (or using a hand mixer), combine butter, sugar and vanilla until light and fluffy, about 2 minutes. Add flour and walnuts. Stir until well blended.

Step 2

Cover dough and chill in the refrigerator for 2 hours.

Step 3

Preheat oven to 375° F degrees. Line a cookie sheet with parchment paper.

Step 4

Measure about 1 tablespoon of dough and shape it around one chocolate kiss and roll it to make a ball (cover chocolate completely). Place dough balls 2 inches apart on prepared baking sheet.

Step 5

Bake at 375° F for 12 minutes or until cookies are set but not browned (the edges may be golden).

Step 6

Allow cookies to cool on the baking sheet for 5 minutes. While the cookies are still warm, roll them in confectioners' sugar. Set on a wire rack. Before serving, add more powdered sugar, if desired.