Peppermint Blossom Cookies

0 Preheat over to 350F.
1 Beat the butter and sugar together until fluffy.
2 Add the vanilla and the egg yolks.
3 Stir the flour, baking soda, and salt together.
4 Add the flour mixture to the butter mixture and blend.
5 If it is too dry add the milk a little at a time until a firm dough is formed.
6 Shape the dough into 1 inch balls and roll in the colored sugar.
7 Place on an ungreased cookie sheet.
8 Freeze for about 20 minutes.
9 Bake for 8 to 10 minutes or until puffy and set. DO NOT overbake these.
10 Remove from the oven and cool for 3 minutes or so.
11 Press a Kiss into the center of each cookie.
12 Place in the freezer for a few minutes to keep the chocolate from melting too much.
13 Remove from the cookie sheet.