In a large mixing bowl, beat the egg, egg white, brown sugar and oil until blended. Combine the flour, baking powder and salt; gradually stir into sugar mixture just until blended. Stir in granola and cranberries (batter will be thick).
Spread into a 9-in. square baking pan coated with cooking spray. Bake at 350° for 25-30 minutes or until golden brown and set. Cool on a wire rack. Cut into bars.