Sep 09 2026
RestaurantsFrank's BBQ: Catering & RestaurantHerb Roasted Prime Rib Recipe

Herb Roasted Prime Rib Recipe

Time3h
Serves6

SERVED WITH CREAMY MASH POTATOES, GRILLED ASPARAGUS AU JUS AND CREAMY HORSERADISH

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Ingredients

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Prime Rib

Method

Prime Rib

  1. 1

    Bring to room temperature

    Remove the prime rib from the refrigerator 2 to 3 hours before roasting so it comes to near room temperature. Pat dry thoroughly with paper towels.

  2. 2

    Preheat oven and prep roast

    Preheat oven to 450°F (230°C). In a small bowl combine kosher salt, black pepper, minced garlic, chopped rosemary, chopped thyme, olive oil and Dijon mustard to make a paste.

  3. 3

    Season

    Rub the Dijon over the entire roast. Then evenly coat with the herb-garlic-olive oil paste, pressing it into the surface. Tie the roast with kitchen twine between each rib if not already tied to ensure even cooking.

  4. 4

    Roast high then low

    Place roast bone-side down (fat cap up) on a rack in a roasting pan. Roast at 450°F for 20 minutes to develop crust. Reduce oven temperature to 325°F (160°C) and continue roasting until desired internal temperature: 115°F (46°C) for rare, 125°F (52°C) for medium-rare, 135°F (57°C) for medium. For a 6–7 lb bone-in roast expect ~1.5–2 hours after the initial sear (use instant-read thermometer in thickest part not touching bone).

  5. 5

    Rest

    Transfer roast to a cutting board, tent loosely with foil and rest for 20–30 minutes. Reserve pan juices for au jus. Final carryover will raise internal temperature ~5–10°F.

  6. 6

    Carve

    Remove twine, slice between the ribs into thick slices (about 1/2 to 3/4 inch) or to desired thickness. Serve with au jus and creamy horseradish.

Creamy Mashed Potatoes

  1. 7

    Cook potatoes

    Place peeled and cubed potatoes in a large pot and cover with cold, salted water (about 1 tbsp salt). Bring to a boil, then reduce to a simmer and cook until potatoes are fork-tender, about 15–20 minutes.

  2. 8

    Warm dairy

    While potatoes cook, combine milk and heavy cream in a small saucepan and warm over low heat until just warm (do not boil). Warm butter as well so it melts into potatoes easily.

  3. 9

    Mash and season

    Drain potatoes thoroughly and return to the hot pot for a minute to evaporate excess moisture. Mash potatoes with a potato masher or ricer until smooth. Add warm butter, warmed milk/cream, and cream cheese (if using). Season with salt and black pepper. Adjust texture by adding more milk/cream to reach desired creaminess.

  4. 10

    Finish

    Taste and adjust seasoning. Spoon mashed potatoes into a serving bowl and garnish with chopped chives.

Grilled Asparagus Au Jus

  1. 11

    Prepare asparagus

    Trim woody ends of asparagus. Toss asparagus with 2 tbsp olive oil, 1 tsp salt and 1 tsp black pepper to coat evenly.

  2. 12

    Grill asparagus

    Heat a grill or grill pan over medium-high heat. Grill asparagus in a single layer for 3–5 minutes, turning occasionally, until tender-crisp and lightly charred.

  3. 13

    Prepare au jus

    While asparagus grills, warm the beef au jus or demi-glace in a small saucepan over low heat. Whisk in 1 tbsp reserved beef pan drippings for extra flavor. Finish with 1 tsp lemon juice if desired and adjust seasoning.

  4. 14

    Serve

    Arrange grilled asparagus on plate and spoon a small amount of warm au jus over or alongside the asparagus just before serving.

Creamy Horseradish

  1. 15

    Mix

    In a small bowl combine prepared horseradish, sour cream, creme fraiche or mayonnaise, Dijon mustard, salt and lemon juice. Stir until smooth and taste; add more horseradish for heat, or more sour cream for mellowness.

  2. 16

    Chill and finish

    Cover and chill at least 30 minutes to let flavors meld. Before serving stir and garnish with minced chives.

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