Ingredients:

  • 1 lb ground beef (80/20 lean-to-fat ratio)
  • 0.5 cup plain breadcrumbs
  • 1 large egg
  • 2 tbsp Worcestershire sauce (divided)
  • 1 tbsp ketchup
  • 1 tsp yellow mustard
  • 1 tsp onion powder
  • 0.5 tsp garlic powder
  • 1 tsp kosher salt
  • 0.5 tsp black pepper
  • 8 oz cremini mushrooms, sliced thin
  • 1 small yellow onion, thinly sliced
  • 2 tbsp unsalted butter
  • 2 tbsp all-purpose flour
  • 2 cups low sodium beef broth
  • 1 tsp tomato paste

Instructions:

  1. In a large bowl, combine the egg, breadcrumbs, 1 tablespoon of Worcestershire sauce, ketchup, mustard, and spices. Mix into a paste before adding the ground beef. Gently fold the beef into the mixture until just combined—do not overwork. Shape into 4 oval-shaped patties, about 3/4 inch thick.
  2. Heat a drizzle of oil in a heavy-bottomed skillet over medium-high heat. Place the patties in the pan. Sear for 3–4 minutes per side until a dark, mahogany crust forms. Remove the patties from the pan and set aside on a plate (they do not need to be cooked through yet).