Macadamia Shortbread Cookies

1 cup  All-purpose flour
3/4 cup  Confectioners' sugar
1/4 cup  Cornstarch
1 cup  Macadamia nuts (4 oz)
3/4 cup  Unsalted butter; softened

Finely chop the macadamia nuts.  Sift flour, sugar and cornstarch. Stir
in nuts.  Beat butter in bowl at medium speed until creamy. At low speed,
beat in flour mixture. Using a level tablespoon, shape dough into balls.
Place 2 inches apart on un-greased baking sheets.
Flatten each ball with a fork.

Bake in preheated 300 degree oven 25 to 30 minutes until just lightly
browned around edges.  Cool baking sheet on rack 5 minutes.
Transfer cookies to rack to cool.

Variations:  Press half a macadamia nut into each cookie before baking.
Sprinkle with rock sugar upon removing cookies from oven.