Preheat over to 350 degrees Fahrenheit. Remove wrappers from candies (about 35)
. Spray a baking sheet with non-stick spray.
In a small bowl, whisk together flour, baking soda and salt; set aside.
In a large bowl and using an electric mixer, beat the butter, sugar, vanilla, milk, and egg until well blended.
Add the flour mixture gradually to the butter mixture, beating well after each addition until blended.
Shape dough into 1 inch balls. Roll in red and/or green colored sugar. Place on prepared baking sheet.
Bake 8 - 10 minutes or until edges are lightly browned and cookies are set. Remove from oven; cool 2 to 3 minutes. Gently press candy piece into center of each cookie.
Remove from cookie sheet to wire rack. Cool completely.