I saw Ming Tsai do this.

Ingredients

	Ginger Syrup
	—	thinly sliced, fresh ginger, peeled
	—	water
	—	sugar
	Marinade
	—	soy sauce
	—	sesame oil
	—	minced garlic
	—	Flank steak about 1" thick
	—	olive oil
	—	julienned leek

Preparation

Marinate the flank steak uncut overnight.

Prepare ginger syrup by reducing ingredients to 40%.

Cut flank steak into very thin slices.

Sauté small amounts of flank steak (one or two persons' worth) at a time in wok. Leave them between rare and medium. Remove.

Lightly sauté julienned leek.

Add in ginger syrup.

Add beef back in for less than a minute.

Plate.