Roast Beef Tenderloin | Mama's Cooking

Ingredients

• ***For the meat:***
• 5-6 pounds beef tenderloin, trimmed
• 3 teaspoons coarse salt
• 1 1/2 teaspoons fresh cracked black pepper
• 2 tablespoons canola oil
• 1/2 cup unsalted butter, divided
• 1/2 teaspoon Dijon mustard, optional
• 4 large cloves garlic, minced
• ***For the sauce:***
• 1 onion, finely chopped
• 1 sprig fresh thyme
• 1 1/2 cups dry red wine
• 2 cups beef stock
• 1/8 teaspoon ground black pepper
• 1/4 teaspoon salt