Easy High-Heat Roast Turkey With Gravy

Bahan-bahan (8 porsi)

• 1 fresh turkey ((11 to 14 lbs/5 to 6.3 kg))
• 1 tablespoon olive oil
• 1½ tablespoons kosher salt
• 1 teaspoon freshly ground black pepper
• 2¼ cups chicken broth
• 1/2 cup (1 stick) unsalted butter
• 1½ cups finely chopped yellow onion, (from 1 large onion)
• ¼ cup all-purpose flour
• 2 tablespoons Cognac or brandy
• 1 tablespoon heavy cream ((optional))
• 1 tablespoon chopped fresh herbs ((such as thyme, sage, rosemary, or parsley))
• 13 x 16 x 3-in (33 x 41 x 7.5-cm) heavy stainless-steel roasting pan
• V-shaped roasting rack
• Leave-in digital meat thermometer,