Mary Berry bashes the steak for her beef ... remaining oil and fry the red peppers and onion for 3–4 minutes over a high heat. Tip in the white parts of the Chinese leaves and fry for another ...

Be sure to slice the beef against the grain in thin slices. Freezing the meat for 20-30 minutes before slicing firms it ...

If your favorite steak ... peppers and a classic, simple sauce that brings everything together with very little effort. I think it’s perfect as is, but like most of our stir-fry recipes, this ...