How to Cook Prime Rib Roast in a Cooking Bag

Written by alicia bodine Google
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How to Cook Prime Rib Roast in a Cooking Bag
Prime roast ready for cooking. (Penelope Berger)

Prime rib roasts are famous for their good quality. They are easier to prepare than a turkey on Thanksgiving morning. Prime rib roasts require minimal amounts of seasonings and can be cooked in a cooking bag for easy cleanup. Cooking bags are also great for keeping the roast moist as it cooks.

Skill level:
Moderately Easy

Things you need

  • Prime rib roast
  • Salt
  • Pepper
  • Garlic powder
  • Oregano
  • Small bowl
  • Baking dish
  • Cooking bag

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  1. 1

    Set your prime rib roast out on your counter 2 hours before you plan to cook it.

  2. 2

    When you're ready to cook, preheat your oven to 176 degrees C.

  3. 3

    In a small bowl, combine 2 teaspoons of salt, 1 teaspoon of pepper, 1 teaspoon of oregano and 1 teaspoon of garlic powder.

  4. 4

    Rub this mixture all over your prime rib roast.

  5. 5

    Place the seasoned prime rib roast in a cooking bag and tie shut. Make sure the fat side is facing up.

  6. 6

    Place the cooking bag in your roasting pan and put it in the preheated oven.

  7. 7

    Cook for 45 minutes and then reduce the oven temperature to 107 degrees C.

  8. 8

    Cook an additional 3 hours for a small roast, 3 1/2 hours for a medium roast or 4 hours for a large roast.

  9. 9

    Remove from the oven and let sit for 20 minutes before serving.

Tips and warnings

  • The inside temperature of your roast should be 62.8 degrees C. Use a meat thermometer to check that the temperature is correct before eating.

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