Perfect Shortbread

Directions

1. 1
   Preheat oven to 275.
2. 2
   In a large bowl, beat butter till fluffy. Gradually beat in cornstarch, then sugar. With a wooden spoon, beat in flour, about 1/4 cup at a time.
3. 3
   On a lightly floured surface or pastry cloth, roll out dough to 1/4 inch thickness. Using a floured, fluted 2 inch round cookie cutter, cut out cookies.
4. 4
   Place on wax lined baking sheets, prick each cookie 3 times with a fork. Freeze until firm. It can be prepared to this point and then stored in freezer bags for up to one month.
5. 5
   Place frozen cookies on baking sheet.
6. 6
   Bake in oven for 40 to 50 minutes or until firm to the touch. Remove from baking sheet and let cool on racks.
7. 7
   It can be stored in an airtight container for up to 2 weeks.