Allow the turkey to sit on the counter at room temperature for 2 hours before roasting. A room temperature turkey cooks more quickly and more evenly.
Preheat the oven to 350ºF. Make sure the oven rack is set in the lower-third of the oven.
Cut a loaf of ciabatta bread in half (level if needed) and spread butter on both sides. Place the bread in a dry, clean roasting pan, then place the turkey on the buttered bread so that the turkey is breast-side down. The breast should be facing the bread. Get any spices remaining in the other pan, scoop them up, and place them on the bird.
Roast the turkey. Roast for 15 minutes per pound of meat, so if you have a 12-pound turkey, that’s 3 hours. The larger the turkey, the longer it will take to cook, so adjust the time accordingly. You don’t need to remove the turkey from the oven or open the oven door during this time. A digital probe thermometer is extremely helpful here. The turkey is ready when it registers 165°F for the thighs and 160°F for the breasts. (I also use a digital instant read thermometer to take the temperature again, after taking the turkey out of the oven. Remember, the meat will rise about an additional 10º as it rests).
Remove the turkey from the oven and carefully, using clean oven mitts, turn the turkey over so that it is breast side up. This step can be messy, so make sure to protect your hands from the hot bird. Cut and remove the strings around the bird.
Broil. Put the bird back into the oven with the breast side up and broil for 2 to 3 minutes or until the skin on the breast browns a bit. All broilers are different, so you will need to keep a very close eye on the turkey during this part! This is the only time you have to pay attention to the bird in the oven. I suggest keeping the oven light on and opening the oven door every minute to peek.
Let it Rest. Remove the turkey from the oven and let it rest for 40 minutes before carving to allow time for the juices to redistribute within the meat. This way they won’t run out as soon as you slice into it.
Decorate Platter & Carve Turkey. Put the turkey on a platter and arrange fresh bunches of cilantro and mint, and lemon wedges.