"Let's Play Dominoes" Cookies

Directions

Preheat oven to 350℉ (180℃).

Sift flour into mixing bowl.

Cut in butter until mixture resembles coarse crumbs.

Stir in sugar and zest.

Mix in egg to form dough.

Turn out dough onto a floured surface and knead until smooth.

Spray 2 baking sheets with vegetable cooking spray.

Roll dough out on lightly floured board to a rectangle about ¼ inch thick.

Using a knife, cut into 3 by 1½-inch bars.

Using a metal spatula, transfer to baking sheets.

With a knife, mark each cookie crosswise across center.

Arrange chocolate pieces on each to resemble domino dots.

Bake 12 to 15 minutes until light brown at edges.

Cool on baking sheet a few minutes, then transfer to cooling rack.