Japanese Steak Rice Bowl | Umami

Ingredients

• 450g (1 lb) New York strip steak (3.5-cm/1.3-inch thick)
• Kosher salt and black pepper, to taste
• 1/2 yellow onion
• 1-2 green onions, to garnish
• 2-3 tbsp neutral-tasting oil
• 2 cups warm cooked rice, to serve
• Handful of microgreens (or salad), to serve
• 2 raw egg yolks (or poached or soft-boiled eggs), to serve
• Wasabi, to serve
• 5 tbsp soy sauce
• 1/2 tbsp oyster sauce
• 1 ½ tbsp sugar
• 3 tbsp mirin
• 2 tbsp sake (or dry sherry, water)