Adjust oven rack to lower-middle position and preheat oven to 325 degrees

Grease a 9-square-inch baking pan with vegetable cooking spray.For bars'' easy removal, line pan bottom up the two sides with a 9-by-18-inch strip of heavy-duty foil with vegetable cooking spray.

Mix all ingredients in a medium bowl. Turn into prepared pan and pat down until firmly packed.

Bake until golden brown, about 30 minutes.

Cool to room temperature and put pan in freezer.

When bar is firm, use foil handles to remove from pan.

Remove foil and use a long, sharp knife to cut bar into 16 1x4-inchar bars. Can be stored in an airright container up to 1 week or frozen.