Orange Shortbread Squares

Directions

1. 1
   Will need one 10x15x1 inch pan, buttered and lined with buttered parchment or foil.
2. 2
   Position oven rack in the middle of oven and preheat to 325°.
3. 3
   In the bowl of an electric mixer fitted with paddle attachment, combine the butter, sugar, extract, zest, and salt; beat on medium speed until very light colored and fluffy, about 10 minutes.
4. 4
   Add in the flour and mix in on lowest speed.
5. 5
   Remove the bowl from the mixer and use a large rubber spatula to finish mixing the dough.
6. 6
   Scrape the dough into the prepared pan and with lightly floured palm of your hands, press into all corners.
7. 7
   Use the back of a spoon to smooth the top of the dough evenly, if necessary.
8. 8
   With the tines of a fork, pierce the dough all over at 1/2 inch intervals.
9. 9
   Bake the shortbread for about 25-30 minutes, until it is slightly puffed and firm.
10. 10
    Remove the pan to a rack to cool until the shortbread is lukewarm-not completely cooled.
11. 11
    Invert the shortbread from the pan onto a cutting board, and remove the paper.
12. 12
    Using a ruler to mark, then cut the shortbread into 2-inch squares.
13. 13
    Store between sheets of parchment or wax paper in a tin or plastic container with tight-fitting lid; may freeze for longer storage.