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Slow-Cooker Prime Rib Roast

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  • Prep 30 min
  • Total 4 hr 0 min
  • Servings 8
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Prime rib in a slow cooker? You got it! Try this hearty and flavorful bone-in roast that only takes 30 minutes of prep time. The prime rib slow-cooker technique lets you save space in the oven while you whip up our Creamy Horseradish Sauce for dipping. The combination is delicious, beautiful and easily achievable. Add this slow-cooker prime rib recipe to the table the next time you need a showstopping centerpiece.
Updated Nov 26, 2020
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Ingredients

Beef Rib Roast

  • 1/2 cup butter, softened
  • 2 tablespoons finely chopped garlic
  • 1 tablespoon finely chopped fresh thyme leaves
  • 4 teaspoons salt
  • 2 teaspoons pepper
  • 1 cup Progresso™ beef-flavored broth (from 32-oz carton)
  • 5 to 6 lb bone-in beef rib roast
  • 1 tablespoon vegetable oil

Creamy Horseradish Sauce

  • 1 cup sour cream
  • 2 tablespoons prepared horseradish
  • 1 tablespoon chopped fresh chives
  • 1 teaspoon Dijon mustard
  • 1/4 teaspoon pepper
Make With
Progresso Broth

Steps

  • 1
    In small bowl, mix softened butter, garlic, thyme, salt and pepper. Set aside.
  • 2
    Spray 6-quart slow cooker insert with cooking spray. Pour beef-flavored broth into slow cooker. Rub beef roast all over with vegetable oil. Heat 12-inch skillet over medium-high heat. Cook 4 minutes on ribs side, then turn and cook 1 to 3 minutes each on other sides, until browned, holding roast upright in skillet with tongs if necessary.
  • 3
    Transfer to slow cooker, ribs side down. Rub butter mixture on top and sides of roast. Cover and cook on Low heat setting 3 to 5 hours or until desired temperature in center. For medium-rare, cook 3 hours 30 minutes to 4 hours, or until meat thermometer inserted in center reads 135°F. For medium, cook 4 hours 30 minutes to 5 hours, or until meat thermometer inserted in center reads 145°F. Transfer roast to cutting board. Cover roast loosely with foil; let stand 30 minutes before carving. Cut into slices.
  • 4
    Meanwhile, stir together Creamy Horseradish Sauce ingredients. Serve with roast.

Tips from the Betty Crocker Kitchens

  • tip 1
    For an extra pretty presentation, top sliced roast with more fresh chives or thyme leaves.
  • tip 2
    You can make the Creamy Horseradish Sauce served alongside this dish up to two days in advance. Store covered in the refrigerator and give it a stir before serving.
  • tip 3
    Prime rib may be called standing rib roast, beef rib roast or prime rib roast, but all of these names refer to the same delicious cut of meat. This cut may be bought bone-in or boneless. This recipe calls for using a bone-in recipe, which adds flavor and helps keep the meat moist.
  • tip 4
    It can be a little tricky to carve a bone-in prime rib roast, but if you go slowly, use a sharp knife and remember these tips, you’ll be fine. First, once the meat is cool enough to handle, place on cutting board and carefully carve the bone away from the meat. Then, once the bone has been removed, turn the roast bone side down and cut slices evenly and toward the bone side of the roast.
  • tip 5
    This cut of meat is typically served medium rare, which means the inside will still be quite pink. Don’t worry, as long as you follow the temperature instructions included in this recipe, your meat will be food safe. Keeping meat on the rare side brings out its rich, buttery flavor.
  • tip 6
    Want step by step instructions about how to make prime rib roast? Betty’s got you covered with full instructions for how to cook prime rib. And if you prefer to skip the slow cooker, explore the rest of our prime rib recipes.

Nutrition

420 Calories, 30g Total Fat, 35g Protein, 2g Total Carbohydrate, 0g Sugars

Nutrition Facts

Serving Size: 1 Serving
Calories
420
Calories from Fat
270
Total Fat
30g
46%
Saturated Fat
13g
65%
Trans Fat
1 1/2g
Cholesterol
125mg
42%
Sodium
780mg
33%
Potassium
480mg
14%
Total Carbohydrate
2g
1%
Dietary Fiber
0g
0%
Sugars
0g
Protein
35g
% Daily Value*:
Vitamin A
6%
6%
Vitamin C
0%
0%
Calcium
6%
6%
Iron
15%
15%
Exchanges:
0 Starch; 0 Fruit; 0 Other Carbohydrate; 0 Skim Milk; 0 Low-Fat Milk; 0 Milk; 0 Vegetable; 0 Very Lean Meat; 5 Lean Meat; 0 High-Fat Meat; 3 Fat;
Carbohydrate Choice
0
*Percent Daily Values are based on a 2,000 calorie diet.
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