Ingredients
Method
- Mix beef, breadcrumbs, egg, ketchup, Worcestershire, salt, and pepper just until combined; shape 6 oval patties.
- Heat oil in a large skillet over medium-high. Brown patties 3 minutes per side; transfer to a plate.
- Cook onions in same skillet 10 minutes until deep golden and soft.
- Add flour; stir 1 minute. Whisk in broth and mustard; simmer 3 minutes.
- Return patties; cover and simmer 10 to 12 minutes until centers reach 160°F and gravy coats a spoon.