Title: Hamburger Steak with Onions
In a large bowl, mix together the ground beef, egg, bread crumbs, pepper, salt, onion powder, garlic powder, and Worcestershire sauce.
Form into 8 balls, and flatten into patties.
Heat the oil in a large skillet over medium heat.
Fry the patties and onion in the oil until patties are nicely browned, about 4 minutes per side.
Remove the beef patties to a plate, and keep warm.
Sprinkle flour over the onions and drippings in the skillet.
Stir in flour with a fork, scraping bits of beef off of the bottom as you stir.
Gradually mix in the beef broth and vinegar.
Season with seasoned salt.
Simmer and stir over medium-low heat for about 5 minutes, until the gravy thickens.
Turn heat to low, return patties to the gravy, cover, and simmer for another 15 minutes.