The most magical thing about this meal are the potatoes. They are crispy on the outside, and fluffy in the middle. Can we ask more from the humble potato!? To achieve this, we must parboil the potatoes (instead of fully boiling them), coat them in oil, and then bake them. Parboiling cooks the potato just long enough for it to start to get soft. Try not to cook them past this point, otherwise the potatoes can turn to mush.