How to Prepare Prime Rib—and the Perfect Accompaniments

Tender and flavorful, a prime rib roast is sure to impress any crowd. Its striking presence makes it the perfect main dish for special gatherings, making guests believe you're a culinary expert. Despite its sophisticated appearance, preparing a prime rib roast is actually quite straightforward. Find out how to cook this standout dish and get ideas for the ideal sides to accompany it at your next dinner party.

What Exactly Is Prime Rib?

The word 'prime' refers to the top USDA beef grade, recognized as the highest quality standard. Prime rib is famous for its rich marbling, which is the perfect balance of fat interspersed with lean meat. This cut is usually found in high-end restaurants, upscale hotels, and quality butchers.

In most grocery stores, the finest beef grade available is typically USDA Choice, which, while having less marbling, still offers great tenderness, flavor, and quality. What’s commonly labeled as prime rib in supermarkets is often a USDA Choice rib roast unless you have a top-tier butcher or place a special order.

Bone-In vs. Boneless

Choosing between bone-in and boneless prime rib depends on personal preference and the recipe you're following. For this particular recipe, a bone-in roast is used. Many recipes prefer bone-in because the bone helps retain moisture and flavor, while boneless roasts can sometimes lose shape, making the presentation less appealing.

On the flip side, boneless roasts typically cook faster than bone-in cuts, as the absence of the bone allows heat to circulate more easily throughout the meat. Boneless cuts also provide a more even cooking process since the meat lays flatter, giving more surface area in contact with the heat source. This is especially useful when searing.

The price of prime rib can fluctuate significantly depending on how it's prepared. Some prefer to buy a bone-in prime rib, even if they plan to cook it boneless, because trimming it yourself allows more control and could result in more meat. According to the USDA, bone-in prime rib costs around $11.05 per pound, while boneless cuts are typically priced around $13.03 per pound.

How Much Prime Rib to Buy

As a general guideline, aim for 1 pound of prime rib per person for a bone-in roast. This recipe suggests using a 10-pound, bone-in standing rib roast, which will serve approximately 10 guests. Adjust the amount based on your guest count, whether you're hosting a small gathering or a larger celebration.

Ideal Prime Rib Temperature

If you don't already own a digital kitchen thermometer, now is the perfect time to invest in one. It ensures your meat is neither undercooked nor overcooked—critical when preparing food for guests. Plus, you’ll want to avoid ruining your meal and wasting money on a premium cut of meat just because you skipped using a thermometer. Here are the ideal temperatures to look for when cooking prime rib:

Medium-Rare

For a medium-rare roast, insert an instant-read thermometer into the center of the meat. When it reads 125°F, it's time to take it out. The temperature will rise another 5 to 10 degrees as the roast rests, so pulling it at 120°F is perfectly fine.

Medium

For a medium roast, look for a reading of 135°F on your instant-read thermometer. You can remove the roast from the oven when it hits 130°F. Be careful not to touch the bone when inserting the thermometer, as bones tend to be hotter and may give you an inaccurate reading.

What You'll Need

Tools / Equipment

Ingredients

Instructions

How to Prepare Prime Rib

This easy prime rib recipe uses the reverse-sear method, which involves cooking the meat slowly at a low temperature before finishing with high heat for a beautifully crispy, flavorful crust.

Optional Preparation Steps

For added structure, you can tie the roast. If you want to elevate the presentation, consider 'frenching' the bones, which means trimming the meat away to reveal the bones for a cleaner, more refined look.

Chill Overnight

For an irresistibly crispy crust, place the roast bone-side down on a rimmed baking sheet, ideally with a wire rack, and let it sit uncovered in the refrigerator overnight.

Season and Rest

Generously season the roast with kosher salt and freshly ground black pepper on all sides. Let it sit at room temperature for 1 to 2 hours. This step ensures even cooking, resulting in juicy and tender meat.

Preheat and Roast

Preheat your oven to 250°F, ensuring the rack is placed in the lower third of the oven.

Place the roast bone-side down on a clean, rimmed baking sheet. Alternatively, you can use a roasting dish or pan with a roasting rack to elevate the meat.

Check Temperature and Rest

The roast reaches medium-rare when an instant-read thermometer reads 120°F, which typically takes about 3½ hours of cooking time.

Allow the roast to rest for 30 to 45 minutes. During this time, the internal temperature will rise to 125°F, achieving medium-rare perfection.

Sear and Rest Again

Raise the oven temperature to 500°F and return the roast to the oven for about 10 minutes, or until the surface is golden brown and crispy. Once done, allow the meat to rest for 15 minutes before slicing.

What to Pair With Prime Rib

A perfectly cooked prime rib deserves sides that are just as exceptional. Here are eight mouthwatering side dish ideas to complement your five-star meal.

Cheesy Potato Casserole

These potatoes are a staple for holiday gatherings, complementing nearly any type of meat. The creamy gratin features sharp white Cheddar and rich Parmesan, creating a deep, savory flavor. Fresh chives and garlic cut through the richness, making it the perfect side to accompany a hearty dish like prime rib.

Maple-Roasted Vegetables

You can't go wrong with a side of roasted vegetables, and this combination of Brussels sprouts and carrots is packed with flavor. The maple syrup helps these veggies caramelize as they roast, giving them a touch of sweetness and a crispy texture. Preparing the sauce ahead of time saves you some effort, and it's versatile enough to be used in other vegetable dishes or even as a glaze for meats.

Creamy Mascarpone-Mashed Potatoes

These aren't your typical mashed potatoes. This rich, velvety version is sure to elevate any meal. Mascarpone brings a hint of tanginess, while the heavy cream makes the potatoes wonderfully smooth and indulgent. Add a generous pat of butter, and you'll have the perfect complement to your prime rib.

Broccolini With Lemon and Smoked Almonds

This quick and easy broccolini recipe is bursting with fresh, vibrant flavors. The broccolini is sautéed with shallots and garlic, getting beautifully golden and slightly crispy. The tang of lemon juice and the smoky crunch of almonds perfectly complement the green vegetables, with a hint of heat from crushed red pepper.

Herb-Roasted Fingerling Potatoes

Steak and potatoes, anyone? These simple yet flavorful roasted fingerling potatoes make a perfect pairing with any steak. The recipe calls for rosemary and oregano, but feel free to experiment with other herbs to match your roast.

Brussels Sprouts Salad

This salad, perfect for preparing in advance, is sure to make hosting a breeze. The addition of dried cranberries and pecans brings an extra touch of holiday cheer. The tangy apple cider vinegar dressing pairs beautifully with the richness of a thick cut of meat.

Crispy Roasted Sliced Mushrooms

Here's a little secret: mushrooms and beef make a perfect pairing. This recipe features a mix of oyster, shiitake, and cremini mushrooms, but feel free to choose your favorites. After just 30 minutes in the oven, you’ll enjoy crispy, tender mushrooms that are not only delicious but also healthy.

Green Bean Salad with Crispy Bread Crumbs

Crisp-tender green beans are coated in a zesty dressing and topped with a crunchy breadcrumb garnish for a light and satisfying side dish. The sauce, made from lemon, Worcestershire sauce, garlic, and dill, is bursting with flavor. Adding anchovies to the breadcrumbs gives them a unique and delightful twist.