Scotch Shortbread

Directions

1. 1
   Cream the butter and powdered sugar until fluffy.
2. 2
   Sift the flour and cornstarch together and cut into butter mixture until coarse meal.
3. 3
   Knead 1 to 2 minutes until smooth and press into cookie sheet.
4. 4
   Prick with fork.
5. 5
   Bake at 350° for 45 to 60 minutes or until pale brown.
6. 6
   Do not overbake.
7. 7
   Cut into squares while warm.