The best shortbread

Since Trev isn't working we've been experimenting with different recipes for cookies. Our challenge is that we make our treats, not buy them. Some have been good, some have been bad.... this is awesome:

Shortbread
This is actually a Barefoot Contessa recipe from foodtv.com - I didn't all the chocolate dipping stuff, and I made these with just regular cooking margarine. They were awesome. They freeze well (you can also eat straight from the freezer), and fresh they didn't go "off". Here's the quick version:

3 sticks cooking margarine at room temperature
1 cup sugar, plus extra for sprinkling
1 teaspoon pure vanilla extract
3 1/2 cups all-purpose flour, sifted
1/4 teaspoon salt

1) Cream the marg and sugar until combined
2) Add the vanilla extract, flour and salt. Mix on low speed until dough is combined
3) Drop dough on worktop and pat together, wrap in clingfilm and refridgerate for 30mins
4) After the half hour, set oven to 350F to preheat
5) Take out dough, roll out to the depth you want (round disks about 1/3rd inch are good)
6) Use a cookie cutter to create the discs, keeping rolling out the dough til there's none left.
7) Put on an ungreased pan, sprinkle with sugar, and bake for about 15-20mins until edges are golden
8) Remove from oven, let cool to room temperature