Prime Rib of Beef Oven Roast
with Horseradish and Au Jus Sauce


How long to roast beef in the oven? that's easy, follow these simple instructions and it will always produce a perfect
outcome no matter what size you are preparing. Serve with my succulent horseradish and au jus dipping sauce.

prime rib roast
recipe and photograph created by

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Total Time: 2 hr 10 min    Prep Time:10 min    Cook Time:2 hr    Serving size: 1/4 to 1/2 pound per person


Prime Rib roast, bone-in preferred but not necessary,
room temperature, very important!
2 tablespoons Dijon mustard
2 teaspoons dried thyme
6 cloves garlic, minced

Salt and pepper to taste

Au Jus instructions below
Horseradish sauce instructions below

(3 easy steps to prepare Prime Rib Roast)

1. In a small bowl combine Dijon mustard, thyme and garlic. Spread generously on the roast, add salt and pepper. Place in roasting pan, do not add water and do not cover!

2.Preheat oven to 500 degrees F.

3.How long to cook in the oven? That is easy! This method is foolproof AND very accurate, it will always be perfect! Multiply the total poundage by 5 minutes. Be as accurate as possible.
Example: the total weight of the meat is 5.53 pounds. Multiply 5.53 (pounds) times 5 (minutes) which equals = 27.65. This means it will cook in the oven for (27.65) or almost 28 minutes at 500 degrees. After 28 minutes immediately turn oven temperature off. Do not open oven door during the next 2 hours the meat is still cooking.

Roasting your meat with this method will produce the perfection you are looking for, rare to medium rare, the way it should be with a crispy outer crust. If you prefer more well done, leave meat in the oven a little longer. Serve with the au jus and horseradish sauce.

Au Jus
(I created this recipe because I wanted an easy delicious quick dipping sauce)
10-1/2 ounce can French Onion soup
10-1/2 ounce can Beef Broth
1 can cold water
1/2 teaspoon white granulated sugar
2 teaspoons Worcestershire sauce
1/8 teaspoon salt

Bring ingredients to a boil in saucepan; strain, discard onions. Serve au jus dipping sauce hot in small containers if desired alongside a slice of perfectly cooked meat. Can be made 2 days ahead. Makes 3-1/2 cups. Use with French Dip Sandwiches also.

Horseradish Sauce

(I created this easy and delicious recipe because I like it zesty)
1/2 cup sour cream
3/4 cup prepared hot horseradish
1 teaspoon salt

Combine ingredients in a medium sized bowl, cover and refrigerate to develop flavors. Serve in small containers if desired alongside a slice of this delicious cut of meat. Can be made 2 days ahead. Makes 1-1/4 cups.

wine bottle Wine recommendation: Merlot; Cabernet Sauvignon;

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 created by Peggy Bucholz, Fine Dining Gourmet Recipes
established 2001
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