Measure out all of the sauce ingredients (2 tbsp Japanese soy sauce (koikuchi shoyu), 2 tbsp mirin, ½ tbsp tomato ketchup, 1 tsp honey, 1 tsp garlic paste, 1 tsp ginger paste, ½ tbsp toasted sesame oil, ½ tbsp toasted white sesame seeds, ½ tsp chili powder, ¼ tsp ground black pepper, ¼ tsp lemon juice, 1 tsp apple juice) into a small bowl and mix thoroughly.
Heat a frying pan on high. Once hot, add a small drizzle of oil and 300 g thinly sliced beef. Sear on both sides (don't cook all the way through).
Once seared, add the sauce and stir fry the meat for 1 minute 30 seconds. Mix continuously to prevent burning.
Remove the pan from the heat and prepare 2 portions cooked Japanese short-grain rice. Arrange the meat on top of the rice and drizzle the sauce in the pan over the top.
Sprinkle each bowl with chopped spring onion and place an egg yolk or boiled egg on top (optional).
Enjoy!
Notes
Use thin "yakiniku-style" cuts from short loin, outside skirt, or short ribs with some fat for the best results.
Substitute beef with pork or chicken if desired, but cook non-beef meats longer until fully cooked.
Add more vegetables if you like, try quick-cooking options like onions, bell peppers, sliced mushrooms, asparagus, or sweetcorn.
To add vegetables to this dish, use the same pan and fry them to your desired softness before adding the beef and sauce.