Jeany's slow cook chook

My current favourite (using a limited range of failsafe foods) is to put a whole chook (with a chunk of leek in the cavity), some potatoes, chunks of peeled swede and choko and some whole brussel sprouts, with a sprinkle of salt and a cup or so of chicken stock; cook on high for about 4 hours; then I drain off and thicken the juices with cornflour to make a gravy, remove the potatoes and mash them (with some of the other veges too, to sneak them into my fussy eater!!), before carving the chook and serving.