Ingredients:
- 1 lb ground beef (80/20 lean-to-fat ratio)
- 1/3 cup Panko breadcrumbs
- 1 large egg
- 1 tbsp Worcestershire sauce
- 1 tsp yellow mustard
- 1/2 tsp onion powder
- 1/2 tsp garlic powder
- 0.5 tsp salt
- 0.25 tsp black pepper
- 1 large yellow onion, thinly sliced
- 2 cups beef broth
- 2 tbsp all-purpose flour
- 1 tbsp butter
- 1 tsp beef bouillon base
Instructions:
- In a large mixing bowl, combine the ground beef, Panko breadcrumbs, egg, Worcestershire sauce, mustard, onion powder, garlic powder, salt, and pepper.
- Mix with a fork until just combined, being careful not to overwork the meat. Shape into 4 equal-sized oval patties.
- Place the patties on a plate and chill in the refrigerator for 10-15 minutes to help them hold their shape during searing.
- Heat a large heavy-bottomed skillet over medium-high heat. Sear the patties until a deep brown crust forms on both sides (about 3-4 minutes per side). Remove patties and set aside.
- In the same skillet, melt the butter and add the sliced onions. Sauté until softened and lightly caramelized, scraping up the brown bits (fond) from the bottom of the pan.
- Sprinkle the flour over the onions and stir for 1-2 minutes to cook out the raw flour taste. Gradually whisk in the beef broth and bouillon base.
- Return the patties to the skillet. Simmer in the gravy for 5-10 minutes until the sauce has thickened and the beef is cooked through.