Roast Beef with Horseradish Sauce

1/2 cup heavy cream, whipped
1/3 cup steak sauce
3 Tbsps. horseradish sauce
1/4 cup scallions, sliced
2 tsps. vegetable oil
2 lbs. rump roast

Preheat oven to temperature 325°F. Combine first 4 ingredients in a bowl and refrigerate. Season roast with salt and pepper to taste. Heat oil in a heavy flameproof casserole over medium-high heat. Sauté roast 2-3 minutes until brown on all sides. Transfer to oven and roast 22 minutes per 1 lb for medium rare meat. Cook longer if desired. Let stand 15 minutes before cutting into thin slices and serving with sauce.

Source:
Chefs.com

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