1Heat oven to 350°F. Spray cookie sheet with cooking spray.
2In medium bowl, mix oil, sugars, mayonnaise, vanilla and egg with spoon. Stir in barley, flour, baking soda, salt and cinnamon. Stir in nuts.
3Drop dough by rounded measuring tablespoonfuls 2 inches onto cookie sheet.
4Bake 10 to 14 minutes or until edges are golden brown. Cool 2 minutes; remove from cookie sheet to cooling rack.