The Large Onion Peeling Machine from M&P Engineering tops, tails and peels onions of 45mm to 115mm diameter using self adjusting floating knife assemblies over a range of up to 25mm on any one setting. It then slits the onion horizontally from top to tail, the depth of slit is determined by onion quality and grade. The machine finally removes the skin using compressed air providing an end product of optimum appearance.