Everyone wants the juiciest turkey possible for Thanksgiving, and we find that brined or kosher turkeys are best for this. If you'd like to try brining, stir together 8 quarts water with 2 cups kosher salt in a 5-gallon bucket lined with a large heavy-duty plastic garbage bag, then soak raw turkey, covered and chilled, 10 hours. (Kosher turkeys, which are salted during the koshering process, are just as succulent and flavorful as brined ones.) If you are making this entire menu in a single oven, bake the stuffing and sweet potatoes and reheat the potato parsnip purée while the turkey stands after roasting.