Mix egg and milk in a bowl, then tear the bread into small pieces and soak it in the mixture.

Mince the onion using a chopper or knife.

Heat half the salad oil in a pan over medium heat, sauté the onion until softened (about 5 minutes), then let it cool.

In a separate bowl, mix the ground meat, sautéed onion, and seasonings (salt, pepper, nutmeg) until sticky. Add the soaked bread mixture and mix thoroughly. Divide into two portions and shape into patties.

Heat the remaining salad oil in the pan over medium-high heat. Place the patties in the pan, indent the center slightly, and cook for 3 minutes until browned. Flip, add 50cc water, cover, and steam on low heat for 7–10 minutes.

Push the patties to the side, remove excess oil with a paper towel, and add the sauce ingredients (red wine, ketchup, Worcestershire sauce, butter). Simmer for 3 minutes, coating the patties.