Marinate the Beef by combining steak with 2 tablespoons of soy sauce and 1 egg in a large bowl. Let marinate for at least 15 minutes.

Prepare the Oil for Frying by heating 2 inches of oil in a skillet over medium-high heat until tiny bubbles form.

Sauté Aromatics by heating a small amount of oil in another pan, adding onion and cooking until translucent, then adding garlic and cooking for another minute.

Make the Sauce by adding soy sauce, honey, rice vinegar, and water to the sautéed onion and garlic. Simmer until reduced by half.

Coat and Fry the Beef by coating the marinated beef in seasoned flour and frying it until golden brown and crispy, working in batches.

Combine Beef with Sauce by adding the fried beef to the simmering sauce and tossing well to coat.

Incorporate the Noodles by adding cooked noodles to the pan and gently stirring to combine, allowing to warm through.

Garnish and Serve the dish hot, garnished with sliced spring onions and optional sesame seeds.