Classic Beef Chateaubriand

Ingredients

• 1 beef Tenderloin Roast, Center Cut (2 to 3 pounds)
• 4 tablespoons butter, divided
• 1/2 cup shallots
• 1 pound sliced mushrooms
• 1-1/2 tablespoon minced garlic
• 1-1/2 cup dry white wine
• 2-1/4 cups reduced-sodium beef broth
• 1-1/2 teaspoons dried tarragon leaves