Accelerated Slow Roasting Apparatus

I claim an Accelerated Slow Roasting Apparatus for slow-and-low cooking a whole previously butterflied-prepared animal carcass comprising a closed cooking chamber with a plurality of adjustable opening vents arranged on a bottom edge on a vertical side of said cooking chamber comprising a hinged lid with a plurality of adjustable opening vents on a vertical side of said lid, an upper hinged access door wherein a slide out cooking grate and a plurality of height adjustable cooking grate slide-out rails a support post enable removal of said animal carcass from said cooking chamber without opening said lid, a lower hinged access door wherein a plurality of removable cooking fuel trays, wherein said cooking grate is positioned between twenty-five and forty centimeters above said cooking fuel trays to enable a flame-flare-up free, time-accelerated, slow-and-low cooking of said animal carcass in half, or less, of the traditional sixteen to twenty-two hours cooking time.