Pat the steak dry with paper towels to remove moisture, then season all sides generously with salt and pepper.
Insert a meat thermometer into the center of the steak, place it on a cooling rack, and put it in an oven preheated to 95°C (200°F).
Cook the steak in the oven until the internal temperature reaches 48°C (118°F) for medium-rare.
Heat a generous amount of oil in a pan over medium-high heat. Once hot, sear the steak for 30 to 60 seconds on each side to develop a crust.
Remove the steak from the pan and let it rest on a cooling rack for 2-3 minutes.
Thinly slice half an onion and finely chop two green onions.
In a small container, combine soy sauce, oyster sauce, sugar, mirin, and sake. Mix well.
In the same pan used for the steak, add the sliced onions and sauté for about 1 minute over medium-low heat.
Pour the sauce mixture over the onions and let it simmer for about 3 minutes until it reduces and thickens slightly.
Strain the mixture through a sieve to separate the caramelized onions from the sauce.
Thinly slice the rested steak against the grain.
Place a serving of freshly cooked rice in a bowl and top it with a portion of the caramelized onions.
Arrange the sliced steak over the onions in a circular pattern, then drizzle with the sauce.
Add fresh greens, place an egg yolk in the center, and garnish with wasabi and the chopped green onions.
Nutrition data is AI-estimated and may not be fully accurate.
This recipe was created by analyzing the video with AI. For full details, please refer to the original video.