Preheat oven to 375 degrees. Mix together Salt, Pepper, Garlic Powder and Rosemary. Rub roast all over with dry rub. Place roast on rack in middle of oven. Roast 1 hour. Turn oven off. Do not open oven at any time. May be held in oven for several hours. Turn oven on again to 375 degrees for 30 minutes before serving for rare, 40 minutes for medium rare. Works for any size prime rib roast.
While cooking mix together, Mayo, Sour Cream, Horseradish, and Ground Onion. Chill and serve with dinner.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	2342.14 Kcal (9806 kJ)
Calories from fat	1904.49 Kcal
		% Daily Value*
Total Fat	211.61g	326%
Cholesterol	459.87mg	153%
Sodium	2198.23mg	92%
Potassium	1738.14mg	37%
Total Carbs	4.44g	1%
Sugars	1.01g	4%
Dietary Fiber	0.75g	3%
Protein	101.12g	202%
Vitamin C	2.3mg	4%
Iron	12.8mg	71%
Calcium	91.2mg	9%

Amount Per 100 g
Calories	349.49 Kcal (1463 kJ)
Calories from fat	284.18 Kcal
		% Daily Value*
Total Fat	31.58g	326%
Cholesterol	68.62mg	153%
Sodium	328.01mg	92%
Potassium	259.36mg	37%
Total Carbs	0.66g	1%
Sugars	0.15g	4%
Dietary Fiber	0.11g	3%
Protein	15.09g	202%
Vitamin C	0.3mg	4%
Iron	1.9mg	71%
Calcium	13.6mg	9%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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