How To Make Mouthwatering Salisbury Steak

1. Prepare the Steaks:
   • In a large bowl, combine the ground beef, breadcrumbs, milk, egg, chopped onion, minced garlic, Worcestershire sauce, mustard powder, salt, and pepper. Mix well until all ingredients are evenly incorporated.
   • Shape the mixture into 4-6 oval-shaped patties.
2. Cook the Steaks:
   • Heat the vegetable oil in a large skillet over medium-high heat.
   • Add the patties to the skillet and cook for about 4-5 minutes on each side, or until they are browned and cooked through. Remove the patties from the skillet and set them aside.
3. Make the Gravy:
   • In the same skillet, add the butter and let it melt.
   • Add the sliced onion and mushrooms, and cook until they are softened, about 5-7 minutes.
   • Sprinkle the flour over the onions and mushrooms, and stir well to combine. Cook for another 1-2 minutes to remove the raw flour taste.
   • Gradually pour in the beef broth, stirring constantly to prevent lumps.
   • Add the Worcestershire sauce and Dijon mustard. Stir well and bring the mixture to a simmer.
   • Cook the gravy for about 5-7 minutes, or until it thickens. Season with salt and pepper to taste.
4. Combine and Serve:
   • Return the cooked patties to the skillet, spooning some of the gravy over them.
   • Reduce the heat to low and let the patties simmer in the gravy for about 10 minutes, allowing the flavors to meld together.
5. Serve:
   • Serve the Salisbury steaks hot, topped with the rich onion and mushroom gravy.

Enjoy your mouthwatering Salisbury steak!