Step 1

In a mixing bowl, add the strips of steak and add the egg. Using your hands, mix them together and make sure all the steak is coated in the egg.

Step 2

Add the 6 tablespoons of cornflour, and the salt and the pepper. Combine well, ensuring the cornflour is coating the steak well. The mixture will be sticky.

Step 3

Heat the oil in a large frying pan or wok on a high heat until very hot around 3-4 minutes. Test a small piece of beef in the oil, and when it sizzles, the oil is ready

Step 4

Carefully add the steak strips one at a time to the hot oil. You will have to separate them from the sticky mixture. It is best to fry the steak in two batches.

Step 5

Fry the steak until dark brown and crispy for around 5-6 minutes, giving a few stirs in between. Don't move them around too much.

Step 6

Using a slotted spoon, remove the beef and place the steak strips onto a kitchen towel to drain any excess oil.

Step 7

Meanwhile, combine the sweet chilli sauce, soy sauce, ketchup, apple cider vinegar, garlic, Schricha sauce, water and combine.

Step 8

In a clean frying pan, add the sauce and simmer over a medium heat for around 3-4 minutes. The sauce will begin to thicken and get sticky.

Step 9

Add the crispy beef to the sauce and stir through so all the steak is coated in the sticky, chilli sauce.

Step 10

Before serving, sprinkle the sesame seeds on top and serve immediately.