Do you need to parboil parsnips?
There is no actual need to parboil parsnips before roasting. This was often done in the past for old woody parsnips, to stop them drying out. The inner core of the parsnips was often removed too. A good tip is to put the prepared vegetables in a bowl and pour over the water from parboiling potatoes. Leave them in the water then drain before roasting. This ensures tender vegetables without extra cooking.