Abstract: A cooker receives material from an auger and cooks same by circulating the material preferably while stirring same in a cavity or zone having heated air passed and recirculated through the cooking zone and the material. It has an inner perforated vessel surrounded by a second perforated vessel spaced from an outer imperforate vessel. An auger moves the material in a vertical fashion through the inner vessel and disperses and circulates same through the cooking zone between the inner vessel and the second vessel and is used to remove grain from the cooker. Heat is supplied to fresh air and preferably recirculating air from between the second vessel and the outer vessel, and the resulting heated air is forced into the inner vessel. It then passes outwardly through the inner perforate vessel and heats and cooks the material in the cooking zone, and then passes out through the second perforated vessel.