Buttery Mint Cookies

Directions

1. 1
   In a big bowl, beat butter with an electric mixer on medium to high speed for 30 seconds.
2. 2
   Add in sugar; beat until combined.
3. 3
   Beat in egg yolks, milk, and mint extract until combined.
4. 4
   Beat in as much of the flour as you can with the mixer; stir in any remaining flour with a wooden spoon; cover and chill dough about 2 hours or until easy to handle.
5. 5
   Shape dough into 1-inch balls; place on ungreased cookie sheet.
6. 6
   If desired, flatten cookies with the decorative bottom of a glass dipped in colored sugar.
7. 7
   Bake at 350 for 8-10 minutes or until edges begin to brown; transfer cookies to a wire rack and let cool.