Mom'S Butter Balls
["2 sticks butter", "1/2 c. confectioners sugar", "1/2 tsp. vanilla", "1 3/4 c. flour", "1/2 c. chopped walnuts", "extra 1/2 c. confectioners sugar (for topping)"]
["Cream butter and 1/2 cup confectioners sugar until fluffy. Blend in 1/2 teaspoon vanilla and flour.", "Stir in walnuts.", "Chill."]
["butter", "confectioners sugar", "vanilla", "flour", "walnuts", "confectioners sugar"]