1/2 cup panko breadcrumbs ((or 1/3 cup ordinary breadcrumbs))
1 lb/500g ground beef (mince)
1 garlic clove (, minced)
1 egg
2 tbsp ketchup
1 beef bouillon cube (, crumbled)
1/2 tsp Worcestershire sauce
3 tsp dijon mustard (OR 2 tsp dry mustard powder)
1 tbsp olive oil
2 garlic cloves (, minced)
1/2 onion (, finely chopped)
5 oz/150g mushrooms (, sliced)
30g / 2 tbsp unsalted butter
3 tbsp flour ((all purpose / plain))
2 cups beef broth / stock (, low sodium)
1/2 cup water
2 tsp dijon mustard
2 tsp Worcestershire sauce
Salt and pepper
Instructions:
Onion grating - Place breadcrumbs in a bowl. Use a box grater and grate the onion over the breadcrumbs. Mix with fingers, leave to soak for a few minutes.
Mix - Add remaining Salisbury Steak ingredients into the large bowl. Use your hands to mix until just combined. Mix well for a couple of minutes until the mixture becomes a bit "pasty" which will ensure your patties hold together well.
Form patties - Divide into 5 and pat very firmly into oval patties around 3/4" / 1 2/3 cm thick.
Brown patties - Heat oil in a skillet over high heat. Add the steaks and cook the first side for 1 minute or until browned, then gently flip and brown the other side (they will still be raw inside). Remove onto plate.
Cook aromatics - If skillet is looking dry, add a touch more oil. Add chopped onion and garlic and cook for 2 minute until onions are a bit translucent.
Cook mushrooms - Add the mushrooms into the skillet and cook for 2 - 3 minutes until golden.
Make gravy roux - Turn heat down to medium. Add butter. Once melted, add flour and cook for 30 seconds, stirring constantly.
Gravy - Gradually add in beef broth, stirring as you go. Once mostly lump free, whisk in remaining Gravy ingredients.
Finish cooking steaks - Add steaks along with the juices on the plate. Cook for 5 - 7 minutes, or until gravy is thickened, stirring occasionally around the steaks. If the gravy thickens too quickly, add more water.
Season gravy - Remove steaks onto a plate. Taste gravy and adjust salt and pepper to taste.
Serve salisbury steaks topped with the mushroom gravy - over mashed potato is ideal! Sprinkle with a bit of parsley if desired.