Step 1

To the beef, add 1 teaspoon soy sauce, 2 teaspoons cornstarch and 1 tablespoon vegetable oil. Mix well. Heat your wok over high heat until smoking. Add 2 tablespoons vegetable oil, and sear the beef until it just turns opaque (it can still be slightly pink). Remove the beef from the wok and set aside.

Step 2

Reduce the heat to medium, and add another couple tablespoons of oil to the wok. Add the ginger and cook for 1 minute. Add the garlic, sacha sauce, and sugar, and fry this mixture for 2 minutes.

Step 3

Add the scallions and beef back to the wok, along with the remaining tablespoon of soy sauce. Increase the heat to high, and stir-fry for 1 minute, until the scallions are wilted.