Definition of carbuncle for English Language Learners. : 1  a large painful swelling under the skin. : 2  a jewel (such as a garnet) that is cut into a rounded shape.
For a 12-14 lb (5.5-6.5 kg) turkey: Cook for 40 minutes then reduce the temperature to gas mark 3, 325 F (170 C) and cook for a further 3-31/2 hours. Then give it a final 30 minutes (uncovered) at gas mark 6, 400 F (200 C).
Cooking the turkey. The rule of thumb is to cook poultry for 15 to 17 minutes per pound. Add 30 minutes extra to any cooking time if you're stuffing the turkey. The best way to check if a turkey is done cooking is to use a meat thermometer. These are invaluable when checking to see if the turkey has reached a temperature of 165 degrees, which is considered completely cooked.