Serves 8 to 10
Ingredients
For the Roast
- 1 (two- to four-rib) standing rib roast (prime rib), approximately 8 to 10 lb
- 2 Tbsp kosher salt, more to taste
- 2 Tbsp freshly ground black pepper, more to taste
For the Sauce
- 1/2 cup crème fraîche or sour cream
- 1/4 cup prepared horseradish
- 1 Tbsp Dijon mustard
- 1 tsp white wine vinegar
- Sea salt and freshly ground black pepper
By Kim Masibay
Kim Masibay is executive food editor at Art and Cook.
Instructions
Step 1
A day before you’re going to cook the roast, remove it from its packaging and place on a rack in a roasting pan; refrigerate, uncovered, for up to 24 hours to allow the surface of the meat to dry out.
Step 2
Three hours before cooking, remove the roast from the refrigerator and let it sit, uncovered, at room temperature. Meanwhile, prepare the horseradish sauce.
Step 3
In a medium-size bowl, stir together the horseradish, sour cream, and salt until well blended. Cover and refrigerate to develop flavors. Can be made 2 days ahead.
Step 4
Heat oven to 200°F. Massage salt and pepper generously all over the meat.
Step 5
Set the roast, with its fat cap up and rib side down, in a heavy-duty roasting pan (the ribs serve as a natural rack), and place in the preheated oven. Cook until the meat’s internal temperature, measured on an instant-read thermometer, reaches 125°F, which is almost a perfect medium-rare. This will take about 3 to 5 hours, depending on the size of your roast.
Step 6
Remove the roast from the oven and cover with aluminum foil. Raise the oven temperature to 500°F. Allow the foil-covered roast to rest in a warm spot for 30 minutes. Its internal temperature will continue to rise at first, and then it will begin to drop.
Step 7
Uncover the roast and place it in the 500°F oven. Cook until the meat’s surface is deeply browned and crisp, about 6 to 10 minutes. Remove from the oven and transfer the roast to a carving board and cut into thick bone-in steaks or thin boneless slices. Serve with the horseradish sauce.
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