Mix coriander, 3 tbsp. oil, 2 tsp. paprika, the salt, and pepper in a bowl. Rub roast all over with mixture and chill, uncovered, at least 24 hours and up to 4 days.
Preheat oven to 250°. Heat 1 tbsp. oil in a large dutch oven over medium-high heat. Brown roast on all sides. Rub onions with a little oil and the paprika; set aside.
Drain wood chips and transfer to a roasting pan just big enough to fit roast. Spread chips evenly in pan and set a metal rack over chips. Set roast on rack, spoon onions around it, and cover with heavy-duty foil, sealing tightly.
Roast meat until it registers 110° on an instant-read thermometer, 1 1/2 to 2 hours. Increase oven temperature to 475°, uncover, and roast until meat registers 130°, about 20 minutes. (If wood chips look dry, sprinkle with a few tbsp. water.) Transfer roast and onions to a carving board and let rest, uncovered, 20 minutes.
Mix sour cream and horseradish together in a serving bowl. Slice roast thinly and serve with horseradish cream and onions.
Note: Nutritional analysis is per serving.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	13079.43 Kcal (54761 kJ)
Calories from fat	6979.13 Kcal
		% Daily Value*
Total Fat	775.46g	1193%
Cholesterol	1599.73mg	533%
Sodium	22228.33mg	926%
Potassium	8283mg	176%
Total Carbs	540.74g	180%
Sugars	15.03g	60%
Dietary Fiber	14.39g	58%
Protein	445.64g	891%
Vitamin C	36.4mg	61%
Vitamin A	0.1mg	3%
Iron	48.3mg	268%
Calcium	922.4mg	92%

Amount Per 100 g
Calories	359.67 Kcal (1506 kJ)
Calories from fat	191.92 Kcal
		% Daily Value*
Total Fat	21.32g	1193%
Cholesterol	43.99mg	533%
Sodium	611.26mg	926%
Potassium	227.77mg	176%
Total Carbs	14.87g	180%
Sugars	0.41g	60%
Dietary Fiber	0.4g	58%
Protein	12.25g	891%
Vitamin C	1mg	61%
Iron	1.3mg	268%
Calcium	25.4mg	92%

* 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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