Ultimate Butter Cookie

Directions

1. 1
   In a large bowl of an electric mixer, cream the butter with the sugar, salt and egg yolk until smooth.
2. 2
   Blend in the flour until the mixture blends into a smooth dough.
3. 3
   Wrap the dough in a plastic bag and refrigerate 1/2 hour or up to two days.
4. 4
   Preheat the oven to 350 degrees.
5. 5
   Roll out the dough on a lightly-floured surface to 1/8-inch thickness.
6. 6
   Cut into desired shapes using cookie cutters.
7. 7
   Place on lightly-greased cookie sheets.
8. 8
   Sprinkle with decorating sugar.
9. 9
   Bake for 12 to 15 minutes.