Mix the sauce

• Combine the soy sauce, oyster sauce, Worcestershire sauce and brown sugar in a bowl.
• Stir until the sugar dissolves.

Sear the steak

• Season the steak slices with salt and black pepper.
• Heat the vegetable oil in a wok over high heat and sear the steak until browned.
• Add half of the garlic and cook until fragrant, then set the steak aside.

Stir-fry the vegetables

• Add the onion, carrot and cabbage to the wok.
• Stir-fry over high heat until slightly softened but still crisp.

Add noodles and sauce

• Add the yakisoba noodles and toss to combine.
• Pour in the sauce and stir-fry until the noodles are coated and hot.

Finish with steak and garlic butter

• Return the steak to the wok with the remaining garlic.
• Add the butter and toss until melted and glossy.
• Scatter over the scallions and serve.