Mongolian Beef

Steps

1. Toss [[steak]] of sliced flank steak with [[cornstarch]] cornstarch in a zip-top bag until coated.
2. Heat [[oil]] oil in a large skillet over high heat. Add the steak in one layer (in batches if needed) and cook about 1 minute per side, until the edges just brown. Move to a plate.
3. Stir together [[soy]] soy sauce, [[sugar]] brown sugar, [[water]] water, [[ginger]] ginger and [[garlic]] garlic. Pour into the pan and bring to a boil.
4. Add the steak back and let the sauce thicken a couple of minutes.
5. Toss with green onions and sprinkle with red pepper flakes. Serve over rice.