For the Patties:

1. 1. In a large bowl, combine ground beef, Worcestershire sauce, garlic powder, salt, and pepper. Mix gently until just combined.
2. 2. Shape the mixture into thick patties (about 1 inch each).

For the Gravy:

1. 3. Heat a skillet over medium-high heat and add a drizzle of oil.
2. 4. Sear the patties for about 4 minutes per side until browned. Remove from skillet and set aside.
3. 5. In the same skillet, add sliced onions and sauté until translucent (about 5 minutes).
4. 6. Sprinkle flour over onions and stir to create a roux.
5. 7. Gradually whisk in beef broth while simmering until thickened.
6. 8. Add browning sauce for color and flavor.
7. 9. Return patties to the skillet, cover, and simmer on low heat for another 8 minutes.