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How to Make Costco Prime Rib Recipe

Costco Prime Rib Recipe

Costco’s Prime Rib is a flavorful and tender cut of beef, specifically a ribeye roast, which comes from Black Angus cattle.
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Author: Lori Walker, MS, RD
Course: Dinner, Lunch
Cuisine: American
Prep Time: 20 minutes
Cook Time: 20 minutes
Rest time: 10 minutes
Total Time: 50 minutes
Calories: 232kcal


  • 2 4-5 pound bone-in prime rib roasts
  • 2 tbsp olive oil
  • 4 tsp kosher salt
  • 6-8 garlic cloves
  • 2 tbsp fresh thyme leaves
  • 2 tbsp fresh rosemary leaves
  • 2 tsp black pepper


  • Preheat oven to 500°F.
  • Mix minced garlic, olive oil, kosher salt, thyme leaves, rosemary leaves, and black pepper in a bowl.
  • Rub the herb mixture over the prime rib roast.
  • Place roast on a rack in a roasting pan, bone side down.
  • Roast at 500°F for 30 minutes, then reduce heat to 325°F for about 2 hours for medium-rare.
  • Check internal temperature with a meat thermometer; it should be 135-140°F for medium-rare.
  • Rest the roast for at least 15 minutes before carving.
  • Carve the roast into slices, cut against the grain for tenderness, and serve with your favorite side.


  • For best results, use an instant-read meat thermometer to ensure precision and accuracy.
  • Don’t skip the resting period, as it plays a crucial role in achieving a tender and juicy prime rib.
  • Use the drippings from your roast to make a flavorful au jus sauce or gravy.
  • Get creative with the herb rub by adding in other spices like paprika, cumin, or mustard powder for an extra kick of flavor.
Keyword: Costco Prime Rib Recipe