1cup230 grams butter, softened to room temperature
¾cup80 grams powdered sugar
1teaspoonvanilla extractsubstitute lemon zest or other flavoring
2 ¼cups250 grams all-purpose flour
Preheat oven to 300 degrees F, and line 8 x 8 inch baking pan with parchment.
Beat together butter, sugar, salt, and vanilla until fluffy. Add flour and mix just until incorporated.
Press into prepared baking pan, and flatten top. I laid another piece of parchment over it, and stroked across the parchment with my palm to get as smooth a surface as I could.
Bake at 350 for 20 minutes, then remove from oven and mark the shapes. (I used a bench knife and pressed straight up and down all the way through the dough instead of trying to drag it across the fragile surface. Then I used a wooden skewer to poke three holes in the top of each cookie.)
Return to oven, and bake another 35 to 40 minutes, until they turn golden. Watch closely at the end as not to overbake!
Cool completely in pan on wire rack, and then remove and snap apart along marked cuts.
Store at room temperature, in an airtight container, for a week, or wrap tightly and freeze.