Follow these steps to bring this classic dish to life in your own kitchen:

1. In a large bowl, combine ground beef, breadcrumbs, onions, egg, Worcestershire sauce, garlic powder, salt, and pepper. Mix until just combined, being careful not to overwork the meat.
2. Form the mixture into four oval patties, about half an inch thick.
3. Heat olive oil in a large skillet over medium heat. Add the patties and cook until browned on both sides, about 4-5 minutes per side. Remove the patties from the skillet and set aside.
4. In the same skillet, add beef broth, scraping up any browned bits from the bottom of the pan. Bring to a simmer.
5. In a small bowl, mix cornstarch and water until smooth. Stir this mixture into the beef broth to thicken the gravy, cooking for another 2-3 minutes.
6. Return the patties to the skillet, spooning gravy over them. Reduce heat to low, cover, and simmer for 15-20 minutes.
7. Meanwhile, place the potatoes in a pot of salted water and bring to a boil. Cook until tender, about 15 minutes.
8. Drain the potatoes and return to the pot. Add milk, butter, salt, and pepper, mashing until smooth and creamy.
9. Serve the Salisbury steak over a generous helping of mashed potatoes, drizzling with extra gravy.

As you cook, remember Mama Lou’s advice: “The key to great cooking is patience and love.” Let each step be a moment to savor and enjoy the process.