Everything you’ll need for the beef patties:
For the Patties
- 1 kg ground beef
- 1 onion
- 1 small tomato
- 4 tbsp olive oil
- 1 tbsp mustard
- 1 tbsp vinegar
- 1 egg
- 1 tbsp oregano
- ¾ cup stale bread crumbs
- 1 pinch dried mint
- 150 g grated graviera cheese
For the Sauce
- 4 tbsp olive oil
- 1 lemon
- Stock (chicken or vegetable)
- Salt, pepper
- 10 g butter
- A little parsley
Instructions
For the Patties
- Place the ground beef in a bowl and grate the onion and tomato over it, ensuring their juices also go into the bowl.
- Add all the remaining ingredients, except for the cheese, and knead the mixture thoroughly until it becomes homogeneous, firm and easy to shape.
- Take about 150 g of the mixture and form a ball. Make a small hole in the center and fill it with the cheese.
- Seal the edges and flatten the ball into a patty with your palms. Repeat with the remaining mixture to make more patties.
For the Sauce
- Heat the olive oil in a large non-stick frying pan and brown the patties for 2-3 minutes on each side.
- Once they have a nice crust, squeeze the lemon over them, sprinkle with pepper, and add hot water or chicken stock to the pan so that it covers the patties halfway.
- Cover the pan with a lid and cook the patties over medium heat for 5 minutes on each side.
- Taste the sauce and add more salt if needed.
- Add the cold butter in pieces and turn off the heat. Shake the pan gently to melt the butter.
- The sauce should now be thick, well-blended, and rich.
- Optionally, sprinkle with some freshly chopped parsley and serve the beef patties with mashed potatoes and a seasonal salad.
Enjoy!
Source: Argiro Barbarigou