• 4 1/2 cups flour
• 1 lb butter, softened
• 3/4 cup confectioner's sugar
• 3/4 cup brown sugar
• 5 Tbsp cornstarch
• 1 tsp salt

1. Blend sugars and butter, add flour and cornstarch.
2. Blend together about 20 minutes.
3. Roll dough into a log, wrap in wax paper and refrigerate for at least one hour.
4. Roll out to 1/3 to 1/2 inches. Cut with cookie cutter. Prick with fork and bake 1 hour at 275°. Should be golden, not browned.

If you want lemon flavored shortbread, I don't see why you can't add some lemon zest to the mixture, never tried it, but I think it would work.

(Bob)