Three Easy Steps To Stir-Frying

Marinate thin uniform beef strips to flavor or tenderize, if desired, while preparing other ingredients.
Heat small amount of oil in wok or large heavy nonstick skillet over medium-high heat until hot.
Stir-fry beef in half-pound batches (do not overcrowd), continuously turning with a scooping motion, until outside surface of beef is no longer pink. Add additional oil for each batch, if necessary.