Mary Berry bashes the steak for her beef stir-fry before cooking to tenderise it and then fries it as a piece (rather than in strips) for a more succulent flavour. Make the marinade by placing all ...

Fry the diced beef steak in batches until browned all over ... or until the onions have softened but not browned. Stir in the chipotle chilli, chilli flakes, chilli powder and oregano until ...