how long do i cook a turkey breast
5. Time It. Cooking turkey breast requires about 20 minutes per pound to cook (15 minutes per pound in most convection ovens). During the last 20-30 minutes is when you want to remove the foil for that picture-perfect turkey. You will know it's done when the thickest part of the breast reaches 165 degrees.. Get Cooking. Preheat your oven to 350 degrees. Position the turkey breast so that the meaty side is up in the roasting pan. Add some water, white wine, or chicken stock to the bottom of the pan (you will want this to keep the bird moist, for basting, and for gravy).