This prime rib slow cooker recipe uses prime rib marinated in a garlicky sauce and slow-roasted to seal in all the juices, resulting in a simple yet show-stopping potluck main dish.
Preparation Time
5 mins
Cooking Time
2 hr 45 mins
Total Time
2 hr 50 mins
Calories
225 Calories
Recipe Instructions
Step 1
Preheat the oven to 450 degrees F (230 degrees C).
Step 2
Place prime rib on a baking rack set inside a large baking dish.
Step 3
Mix liquid seasoning and Worcestershire sauce together with garlic in a bowl. Pour over prime rib in a container. Marinate for 1 to 2 hours, turning every 30 minutes.
Step 4
Bake in the preheated oven until all juices are sealed in, about 45 minutes.
Step 5
Reduce oven temperature to 325 degrees F (165 degrees C) and continue roasting until an instant-read thermometer inserted into the center reads 130 to 140 degrees F (54 to 60 degrees C), about 2 hours more.
Step 6
Let prime rib sit for 30 minutes to 1 hour before slicing.
Ingredients
3 cloves garlic, minced, or more to taste
9 pounds bone-in prime rib, cut and retied to the bone
0.5 cup Worcestershire sauce
0.5 cup soy-based liquid seasoning (such as Maggi®)
