2 cups powdered sugar
2 sticks butter (softened)
1 egg
1 tsp vanilla
2½ cups all-purpose flour
1 tsp baking soda
1 tsp cream of tartar
Mix all ingredients and chill in a covered bowl for at least 2 hours.
Preheat oven to 400°.
Roll chilled dough onto floured surface and cut into shapes. Sprinkle with sugar if not frosting later. Place on lightly greased cookie sheet.
Bake at 400° for 8-10 minutes.