Toss the steak strips in the cornflour and some salt and pepper and set aside for 5 minutes.
Peel and finely grate the garlic and the ginger. Cut the spring onions into 2cm lengths.
Heat half the oil in a wok or frying pan over a high heat and fry the steak until browned all over. Remove and set aside.
Heat the rest of the oil and fry the garlic, ginger and spring onions over a medium heat for 2 minutes.
Add the stir-fry vegetables to the pan with a splash of water and fry for 1 minute before adding the chilli flakes, soy sauce and sugar along with 200ml water.
Return the steak to the pan with the noodles and bubble until you have a glossy sauce that coats the noodles.
Serve straight away.
Notes
Another classic favourite from the Chinese takeaway, but it’s so much better when you make it yourself.