Prime Rib Beef Roast
A reverse sear ensures an even cook and perfect crust on this holiday favourite.
Ingredients
- 2 kg beef prime rib roast weight approximate, roughly 5lbs
- 1 tbsp black pepper
- 1 cup Zesty Italian Dressing
Simple Horseradish Sauce
- 1½ cups mayonnaise
- ½ cup prepared horseradish
Instructions
- Place the roast in a mixing bowl and sprinkle pepper on all sides of roast, using more pepper as desired for a peppery crust, then pour the Zesty Italian Dressing on, rotating the meat to coat it.
- Marinate the meat for up to an hour, turning every 15 minutes.
- Preheat oven to 300℉ (see notes). Prepare shallow roasting pan by lining with foil and parchment paper, or spraying with oil, for easy cleanup.
- Remove roast from mixing bowl and place fat side up in prepared roasting pan, fat side up, and cover (see notes). Insert probe thermometer into thickest part of the center, not touching any bones.
- Roast until probe thermometer register 118℉ for medium rare. The temperature will continue to increase in the next step, so don't overcook it.
- Remove from oven. Let rest, covered, for at least 15 minutes, up to an hour (if needed, before meal time).
- 20 minutes before serving, preheat oven to 500℉ and uncover the roast.
- Return the pan to the oven to sear for 5-15 minutes, until desired brownness is achieved.
- While the roast is searing, mix the mayo and horseradish in small serving bowl.
- Serve immediately with horseradish sauce.
Notes
A low oven temperature, even as low as 200℉ is important, to allow the meat to evenly cook, retaining moisture.
Covering the roast is also optional, but I find that it cooks a bit faster and more evenly if it's covered.
You might need to open some windows and turn on vents if you have a sensitive smoke alarm!
Nutrition Facts are based on 1/8th of a 5lb prime rib roast only. Because the marinade is discarded, it adds a negligible amount to the values. Mayonnaise and Horseradish are not considered because not everyone will eat the same amount, if any.
Nutrition
Calories: 746kcalProtein: 34gFat: 66gSaturated Fat: 28gPolyunsaturated Fat: 2gMonounsaturated Fat: 29gCholesterol: 151mgSodium: 111mgPotassium: 552mgCalcium: 19mgIron: 4mg