When preparing veg. If you are in the habit of taking the hard core from the inside of a Parsnip, don’t bother! After peeling the parsnip and cutting in halve lengthways score the hard centre two or three times with the point of a sharp knife and cook as normal ,I don’t parboil mine straight into a hot oven with the rest of the veg that I am roasting again to go into the fridge, for the week ahead!