How to Roast a Turkey in a Plastic Oven Bag

Ingredients
1 whole turkey (10–14 pounds)

4 tablespoons (1 stick) unsalted butter, softened

Salt and pepper, to taste

1 teaspoon dried thyme (optional)

1 teaspoon dried rosemary (optional)

1 teaspoon garlic powder (optional)

1 large onion, quartered

2 carrots, cut into chunks

2 celery stalks, cut into chunks

1 plastic oven roasting bag (large size)

1 tablespoon all-purpose flour (to coat the bag)

Instructions