Defrost the turkey if frozen. Brine the bird if you choose.
Preheat the oven to 450 degrees. Arrange the oven rack so the bird will fit on the middle shelf without touching the top shelf.
Clean the bird and remove the neck, giblets, liver and heart, and set aside for the stock/gravy. Pat the bird dry with paper towels. (The liver can be reserved; it is delicious lightly coated in flour and then sautéed in a hot skillet greased with 1 teaspoon of butter for about five to six minutes per side.)
Use the vegetable oil to lightly grease the bottom of a large roasting pan. Season the turkey with pepper and salt (only if you did not brine the bird), inside the cavity and outside the skin. If stuffing the bird, loosely stuff both the body and neck cavities of the turkey with your choice of stuffing, pressing down but being careful not to overstuff the bird. Use the whole slice of bread as a "door" to keep the stuffing inside the large body cavity; simply press the bread into the cavity as a way of keeping the stuffing inside so it won’t fall out while roasting. Carefully place the bird into the roasting pan, breast side up. If you want to use a roasting rack simply place the bird on the rack and set inside the pan.
In a medium skillet, heat the butter over low heat. Add the garlic cloves, thyme and sage and let cook two to three minutes until the butter has completely melted, and the garlic is just beginning to turn a light golden brown. Remove from the heat. Using a spoon or a barbecue or pastry brush, brush the skin of the turkey with some of the garlic butter and scatter at least half the garlic cloves around and on top of the bird. Keep the remaining garlic and butter for later basting. Sprinkle the top of the bird with the paprika, salt and pepper. Using a piece of kitchen string, tie the legs together to keep them from touching the sides of the roasting pan; tying the legs also makes for a "neater" looking roasted turkey.
Place the bird on the middle shelf and roast for 30 minutes. Reduce the heat to 350 degrees and loosely cover the bird with foil. Roast the turkey another 3 1/2 to 4 1/2 hours, about 15 to 20 minutes per pound, depending on the freshness of the bird. (Fresh turkey tends to cook much faster than those that have been frozen. And unstuffed birds will cook even faster so be sure to check the turkey after it’s roasted for 10 minutes per pound.) Baste the bird every hour or so with the remaining garlic and butter and baste with the liquids that have accumulated on the bottom of the roasting pan. Remove the foil for the last hour of roasting time to give the bird a golden brown glaze.
While the bird is roasting, begin the gravy by making the turkey stock: place the reserved neck, giblets, and heart in a medium saucepan. Add the parsley, onions, celery, carrots, peppercorns, bay leaf, salt and pepper to the pot and cover with about 8 cups cold water. Bring to a boil over high heat, reduce the heat, and let simmer on very low heat for about 1 to 2 hours. This will produce a light turkey stock that will be the basis of your gravy. Taste for seasoning and remove from the heat.
To test for done-ness: the bird should be a gorgeous golden brown; when you wiggle a drumstick, it should feel slightly loose, and when you pierce the skin directly above the wing, the juice should run clear yellow, and not pink. A meat thermometer placed deep into the breast should read 150 degrees. The bird will keep cooking once it’s removed from the oven so be careful not to overcook it. Gently remove the bird from the roasting pan and place on a serving platter; cover loosely with aluminum foil.
To finish the gravy, once you’ve removed the bird, place the roasting pan over two burners over moderate heat. (If there seems to be an excessive amount of turkey fat in the bottom of the pan, remove it by tilting the juices to the side and remove with a spoon or baster, being careful not to remove any of the natural juices.) Use a spatula to loosen any bits clinging to the bottom of the roasting pan. Sprinkle on the flour and, using a whisk, mix the flour with the juices in the bottom of the pan. Let cook one minute, stirring, until the paste has come together and is beginning to turn a pale golden color. Pour a little more than half the turkey stock through a sieve into the pan and whisk to create a smooth gravy. Let simmer about five to 10 minutes, until slightly thickened and flavorful. Thin the gravy by adding additional stock as needed. Simmer until the gravy is the desired thickness. Season to taste with salt and pepper. Keep the gravy warm over a low heat, stirring occasionally, until ready to serve.

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