Set out all mixture of oranges, onions, olive oil so it's easily accessible on the counter.Also set out your softened butter. Take the chopped oranges and onions out of the olive oil mixture and stuff as many as you can into the cavity of the bird. Reserve the rest of the oil in the bowl. You’ll need this for coating the turkey later. Any extra oranges and onions that don't fit inside the bird, set in the bottom of the roasting pan. These make delicious gravy drippings. Grab a chunk of the softened butter with your hands and rub it all over the turkey. Rub butter underneath all the skin on top and then rub butter on the outside of the skin too. Rub butter all over the turkey.
Grab the remaining olive oil from the orange bowl and rub the olive oil/rosemary mixture all over the turkey. Rub in on the top, bottom, and sides too.
Grab your string and tie the legs together as tightly as you can to hold the shape of the turkey and keep it together. (Some turkeys come with a pre-tied plastic clasp on the turkey legs - this can be cooked with the turkey, so just leave that on).Put water in the roasting pan, about 2 inches up the side. Place roasting pan in the oven and use the chart below to determine cook time based on weight of turkey. (These times are based on placing the whole turkey on a rack in a roasting pan, and into a preheated 350 degree F (175 degrees C) oven.) Cooking time:
Cook the turkey uncovered for 1 hour, until the skin is a light golden brown color, then cover loosely with a foil tent. Baste every 1 hour until done cooking. The turkey is done when the thickest part of the breast meat reaches an internal temperature of 150 - 155° degrees F. To get an accurate reading, be sure that your thermometer is not touching the bone.If you cook it too long it will be dry, so watch the temperature at the end closely!You can also cut into the turkey to see if the juices run clear, but this isn't as accurate as a thermometer reading. When the turkey is done, remove from the oven and allow to stand for 20-30 minutes, covered in foil, before carving. This allows the juices to redistribute throughout the meat, and makes for easier carving.
Once you're ready to eat, carve the turkey and place on a serving platter.Then generously salt all of the turkey on the platter.Baste all of the turkey on the platter with the drippings from the pan. This is the key to keeping it moist!!Cover in foil until ready to serve. Note about temperature: I’ve gotten a lot of questions about keeping your turkey from being dry.The biggest factor is making sure you don’t cook it too long. If your turkey is dry, it is probably because you cooked it too long. Use a thermometer and take the turkey out once it reaches 155°F.Some say 165°F is the temperature you should cook it to but I’ve actually found 155°F to be a better temperature so I did some research on it - As long as you rest the turkey for at least 10 minutes before you eat it, any of the bacteria will be killed if cooked to 155°F. If you’re worried go only to 165°F and no higher!If you go over 165°F, it will be dry.Make sure to grab a digital meat thermometer now to have on hand!Also, make sure to baste and salt it after it’s carved before serving!! Turkey “Poppers”: Do not cook the turkey until the pop-up pops up! By the time the pop up pops, your turkey will already be overcooked and dry. Remember when you remove the turkey from the oven that it will continue to cook for up to ten minutes, so if you remove the turkey at 180-185 degrees, as most poppers do, your turkey could then reach an internal temp of 190 or higher.