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Directions

1. 1
   Sift first 4 ingredients together; set aside.
2. 2
   Cream butter and vanilla until butter softens.
3. 3
   Add sugar gradually, beating until fluffy.
4. 4
   Add egg yolks, one at a time, beating well after each.
5. 5
   Add dry ingredients in fourths to creamed mixture, beating just until blended.
6. 6
   Form dough into balls, about 1-inch in diameter.
7. 7
   Roll in additional sugar.
8. 8
   Place about 2-inches apart on ungreased baking sheets.
9. 9
   Bake at 350° for 10 minutes or until golden.
10. 10
    Place a chocolate kiss on top after baking.
11. 11
    Makes about 10 dozen cookies.