Cooking A Turkey Breast Ahead Of Time. The best way to do this is to roast the turkey then carve it into larger pieces such as the whole breast lobes the wings the thighs and the drumsticks. Layer the sliced meat into a large casserole separating the light and dark meat.
Bake covered until a thermometer inserted in turkey reads 165 50 60 minutes. Although you should never partially cook a turkey and complete cooking later you can cook the bird ahead of time and reheat the meat later. Slice the warm turkey.
Let the fully cooked turkey rest for 30 minutes.
Pour cooking juices over turkey. Refrigerate uncovered until fully cooled. Add the turkey breast to the pot use a plate to help submerge it if needed cover and refrigerate for at least 12 hours and up to 1 day. Cool slightly about 1 hour.
