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How Long to Cook a Turkey at 325 Degrees? Recipe in Oven!

How Long to Cook a Turkey at 325 ºF

In this recipe I will show you how to cook a 17-pound turkey at 325 ºF in oven. It's very simple!
5 from 1 vote
Prep Time 30 mins
Cook Time 5 hrs
Resting Time 5 mins
Course Main Course
Cuisine American
Servings 10 Servings


  • 1 Thawed, fresh, or frozen turkey (12 to 14-pound)
  • 5 teaspoons Kosher salt divided.
  • 2 tbsp Olive oil divided.
  • 2 Cloves garlic minced
  • 4 Sprigs of fresh thyme plus one tablespoon of finely chopped thyme leaves
  • 3 Sprigs of fresh rosemary plus one teaspoon of finely chopped leaves 
  • 1/2 cup Apple cider
  • 1 One tablespoon Dijon mustard
  • 12 ounces Mushrooms halved or quartered depending on the size if desired
  • Nonstick cooking spray


  • Preheat the oven to 325 F. Rinse the turkey and pat dry with paper towels. Place turkey on a rimmed baking sheet or roasting pan.
  • Combine 1-1/4 teaspoons kosher salt, two tablespoons oil, minced garlic, four thyme sprigs, and three rosemary sprigs in a small bowl; rub all over turkey. 
  • Turn the turkey breast side up on the prepared baking sheet so drumsticks are pointed toward the opening of the oven. 
  • Pour apple cider into the cavity, and tie legs together with kitchen twine.
  • Bake turkey until a thermometer inserted in the thickest part of the thigh (not touching bone) registers 165 degrees F and breast temperature reach 155 degrees F, 1 hour 45 minutes to 2 hours 15 minutes
  • Baste every 30 minutes with pan juices. If desired, place red onions and mushrooms around the turkey during the last 30 minutes of bake time.
  • Remove turkey from oven; transfer to a platter and let stand, loosely covered with foil, at least 30 minutes before carving (internal temperature will rise 5 degrees F). 
  • Discard herb sprigs, and drain fat from the roasting pan. Place the roasting pan on the stove; heat pan juices to simmer over medium heat
  • Add remaining 3/4 teaspoon salt and chopped thyme and rosemary; cook until reduced by half. 
  • Remove from heat, whisk in one tablespoon oil and Dijon mustard; season with salt and pepper, if desired. Carve turkey, and serve with gravy.
Keyword How Long to Cook a Turkey at 325 ºF
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