Molly’s Lemon Roast Chicken

Gran made this with kumera, the ‘native’ potato of New Zealand, which is a rich -almost purple – colour. In fact it came with the first canoes from Polynesia, but the New Zealand variety is different from what you’ll find elsewhere in the Pacific. Kumera are unavailable in Britain, but it’s becoming easier to get hold of sweet potatoes. The best ones are orange-fleshed and usually come from Israel or South Africa. In winter, parsnips make a great substitute. Gran’s chicken is best eaten wit