Preheat oven to 325 degrees ... flour with the cornstarch and salt and add to ... outside edges of shortbread dough with the tines of ... in wedges to serve.
Ingredients: 6 (cornstarch .. flour .. salt .. sugar ...)
Cream butter, adding sugar gradually. Measure flour and cornstarch; stir together in separate ... for 45-60 minutes. Shortbread should be golden, not browned. Cut into squares while still warm.