In a large skillet on medium heat, melt the butter. Melt butter and add in thinly sliced onions. Reduce heat to medium-low, stir well and add in ¼ cup of the beef broth. Place the lid on the skillet and let the onions cook for 5-10 minutes. Mixing occasionally--making sure that the onions do not burn. Add additional liquid if needed. Once the onions are translucent push them off to the sides of the skillet so they aren't in direct heat.
1 tablespoon unsalted butter, 1 onion, 3-¼ cups beef broth
While the onions cook prepare the ground beef mixture. Combine the ground beef, steak seasoning, 1 tablespoon of Worcestershire sauce, dried onion flakes, parsley, bread crumbs and egg together. Mix well, then divide the mixture into 4-6 patties.
1 pound lean ground beef, 1 tablespoon steak seasoning, 3 tablespoon Worcestershire sauce, 1 teaspoon dried onion flakes, 1 teaspoon dried parsley, ½ cup plain breadcrumbs, 1 egg
Pour the grapeseed oil into the pan. Form each patty into an oval shape, pressing thin, then place in the skillet. Cook for 5 minutes on medium heat with the lid on. Then flip the patties with a spatula and press the beef down thinning them out. Cook for an additional 3 minutes and move the patties to the sides of the skillet.
1 tablespoon grapeseed oil
While patties are finishing up cooking whisk together the 3 cups of beef broth, 2 tablespoon Worcestershire sauce, 3 tablespoons cornstarch, and black pepper.
3-¼ cups beef broth, 3 tablespoon Worcestershire sauce, 3 tablespoon cornstarch, ⅛ teaspoon black pepper
Increase the heat to medium-high and pour and mix the seasoned broth into the center of the skillet. Cook for 3-4 minutes stirring constantly until broth turns into a thick gravy. Flip the beef patties around ensuring the gravy is coated on both sides of the beef and cook for an additional 5 minutes on low heat with lid on. Serve immediately and enjoy.