Abstract: Dual bags including a primary bag for french fries coupled to a secondary bag for ketchup. The primary bag has a base, a front wall and a rear wall. The base is formed with side edges coming to an obtuse angle at an intermediate point. Glue-receiving strips extend outwardly from the side edges. Each wall has interior fold lines flaring outwardly and supplemental fold lines located laterally outwardly from the interior fold lines. Glue-receiving strips are located outwardly from the supplemental fold lines. The upper edge of the central extent of the front wall has a concaved curve and the upper edge of the central extent of the rear wall has a convex curve. The smaller secondary ketchup bag has a rectangular outer panel and a rectangular inner panel with a transverse fold line therebetween adapted to create a V-shape cross section when open for receiving ketchup.