Cook a 3.5lb turkey breast at a temperature of 325°F for 77 up to 87 minutes (1 hr 17 mins - 1hr 27 mins); 22 - 25 minutes per pound.
Roast uncovered until meat thermometer in thickest part of breast reaches 170°F. If breast is stuffed, center of stuffing should be 165°F.
As per Butterball.com, roasting time will vary if turkey is covered or placed in an oven-cooking bag.
While there are lots of opinions about (and some sound advice for) roasting a turkey, there are just a few key steps to avoid for a terrific Thanksgiving turkey.
Check out these 7 mistakes to avoid when cooking a turkey shared by Thekitchn.com.