Defrosting a turkey breast is a little easier and less time consuming then if you're working on thawing a full bird. Remove the breast from the freezer and submerge it in a container of cold water. Every 30 minutes you refresh the water for every pound the turkey has. So for a 4 pound turkey, you'll do this 4 times. Alternatively, you can place it in the refrigerator for 24 hours before cooking if it's under 5 pounds.