Hamburger steak (Demiglace sauce hamburger) | Transcript of recipe by Dare Uma [culinary researcher]

Place the ground mince in a bowl, add salt and black pepper.
Place the bowl over ice water and knead the mince thoroughly until it becomes sticky and white.
Add nutmeg, beaten egg, mayonnaise, and potato starch and knead well.
Let stand in the refrigerator for at least 30 minutes.

Apply a thin layer of salad oil (not listed) to the palm of your hand, and shape the dough while removing air.

Pour salad oil into a frying pan and heat over medium heat. When it's hot, make a well in the center of step 2 and fry.
Cook over medium heat for 3 minutes, then turn over, reduce heat to low, sprinkle with cooking wine, cover, and cook for 2 and a half minutes.
Wrap it in aluminum foil and let it sit to let the juices settle.

Add Worcestershire sauce, red wine, ketchup, and sugar to the frying pan you used to fry the hamburgers.
Bring to a simmer over low heat, using a spatula to scrape off any burnt bits from the hamburgers on the bottom of the frying pan.

3のアルミホイルを外してお皿に盛り、上から4をかけたら完成。