Slice the Beef: Prepare the steak by chopping it, from the grain, into ¼ inch thick strips about two inches extensive. Marinate the Beef: Within a medium bowl, whisk collectively the egg, soy sauce, and one tablespoon of cornstarch.Crispy beef strips stir-fried with onion and purple bell peppers then tossed in a sweet and tangy sauce. You’re gon