Cranberries are shiny scarlet berries that grow on low-trailing vines in large sandy bogs. They are also called bounceberries, because ripe cranberries bounce. Cranberries grow wild in northern parts of North America and are extensively cultivated in Massachusetts, Oregon, Washington and Wisconsin. Cranberries are harvested between Labor Day and Halloween.
Cornstarch is used to thicken puddings, sauces and soups, as well as to produce a fine texture in cookies and cakes. Recipes thickened with flour are opaque; those thickened with cornstarch are clear.
These bars are an excellent addition to the holiday cookie tray. The red cranberry filling makes them festive and colorful.