london broil with mushroom sauce

How To Make london broil with mushroom sauce

• Step 1
  In a large mixing bowl, whisk together 1/2 cup shallots, 1 tablespoon garlic, 1 tablespoon oil, vinegar, mustard, Worcestershire sauce, hot sauce, thyme, and rosemary. Add beef, turning to thoroughly coat beef with the marinade. Refrigerate 3 1/2 hours, turning occasionally.
• Step 2
  Let beef mixture stand at room temperature for 30 minutes before cooking.
• Step 3
  Place oven rack 4 inches from broiler, and preheat broiler.
• Step 4
  Heat a large skillet over medium heat. Add remaining 1 tablespoon oil to pan; swirl to coat. Add remaining 1/4 cup shallots, remaining 1 tablespoon garlic, and mushrooms to pan; cook 10 minutes or until mushrooms are browned, stirring occasionally. Stir in 1/4 teaspoon salt and 1/4 teaspoon pepper. Combine 1/4 cup stock and flour in a small bowl, stirring with a whisk. Add flour mixture and remaining 1 1/4 cups stock to the skillet, and simmer for 4 minutes or until sauce is slightly thickened. Remove skillet from heat, then stir in butter and soy sauce. Keep warm.
• Step 5
  Remove beef from marinade; discard marinade. Use a paper towel to wipe marinade from beef. Sprinkle remaining 1/2 teaspoon salt and remaining 1/4 teaspoon pepper on beef. Place a wire rack inside a large baking sheet with sides (like a heavy-duty cookie sheet or jelly-roll pan). Place the beef on the wire rack, and place baking pan in oven and let broil 5 minutes on each side for medium-rare or until broiled as desired.
• Step 6
  Place beef on a cutting board and let stand 5 minutes before slicing. Cut across the grain into thin slices. Serve with the mushroom sauce.
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