Roast Beef Tenderloin with Red Wine Sauce

Name: Roast Beef Tenderloin with Red Wine Sauce
Prep time: 20 min
Cook time: 1 h 20 min
Total time: 1 h 40 min
Cuisine: American, French
Ingredients: 8 tablespoons unsalted butter, (divided); ¾ cup finely chopped shallots, (from 2 to 3 large shallots); 1¼ cups red wine; 3 cups beef broth; 6 fresh thyme sprigs; ¼ teaspoon kosher salt; 1/8 teaspoon freshly ground black pepper; 1 teaspoon sugar; 2 tablespoons all-purpose flour; 1 (2 to 3 lb) center-cut beef tenderloin roast; Kosher salt ((½ teaspoon per pound of beef)); Freshly ground black pepper ((¼ teaspoon per pound of beef)); 2 tablespoons vegetable oil; ¼ cup beef broth