01 -
Don’t run mushrooms under water. Use a damp paper towel to clean them, then pat them completely dry. Chop and leave them aside.
02 -
In a bowl, combine ground beef, the first gravy packet, chopped onions, crushed crackers, milk, egg, plus parsley, onion powder, garlic powder, and pepper. Gently mix everything together.
03 -
Roll the mixture into 6–8 even-sized balls, then flatten each one into a patty about 1.5 inches thick and 3.5–4 inches across.
04 -
Heat 1 tablespoon of butter in a big skillet. Fry patties on each side for around 6–7 minutes until browned nicely. Cook in batches if you have to, and move cooked patties to a clean plate.
05 -
Melt the rest of the butter in the same pan. Add the mushrooms, cook until golden, and season them with Worcestershire or soy sauce along with some black pepper.
06 -
Place patties back in the skillet with mushrooms. Pour in beef broth, cover, and cook on low for 25 minutes, turning patties now and then.
07 -
Mix the remaining gravy packs with 1.5 cups of liquid from the pan, whisk it well, and pour it back. Let it cook for another 8 minutes until the sauce thickens. Let everything sit for 5–10 minutes before digging in.