Prepare the Steaks: Pat the steaks dry with paper towels. Spread a thin layer of Dijon mustard on each side, then season with salt and pepper. Dredge the steaks lightly in flour, shaking off any excess.
4 Beef Steaks, 2 tbsp. Dijon Mustard, 1 tsp. Salt, ½ tsp. Black Pepper, 2 tbsp. All-Purpose Flour
Sear the Steaks: In a large, heavy skillet, heat the butter and vegetable oil over medium-high heat. Once hot, add the steaks and sear for 2-3 minutes on each side, until browned. Remove the steaks from the skillet and set aside.
3 tbsp. Butter, 2 tbsp. Oil
Make the Gravy: In the same skillet, add the garlic and cook for 1 minute until fragrant. Stir in the tomato paste and cook for another minute. Pour in the red wine, scraping up any browned bits from the bottom of the pan. Allow the wine to reduce by half.
1 cup Red Wine, 2 Garlic cloves, minced, 2 tbsp. Tomato paste
Simmer the Steaks: Add the beef broth, thyme sprigs, and bay leaf to the skillet. Return the steaks to the skillet, cover, and let simmer on low heat for about 1 hour, or until the meat is tender. Remove the thyme sprigs and bay leaf before serving.
2 cups Beef Broth, 2 sprigs Fresh Thyme, 1 Bay Leave