For best results, use flank steak or sirloin. For a quicker tenderizing method, substitute the egg white with 1/2 teaspoon of baking soda. Don't overcrowd the pan when stir-frying the beef; cook in batches if necessary. Serve with steamed rice and your favorite stir-fry vegetables.
Keyword velvet beef, tender beef, stir-fry, Chinese cooking, beef marinade, wok cooking, easy recipe, quick dinner