Add the celery, chilli and half the spring onions and stir-fry for 2 minutes. Add the duck and stir-fry for 1 ... Add the hoisin, oyster and soy sauces and toss well. Scatter with the remaining ...

If you've only got tuna packed in water on hand, heating it up for a few minutes in a pan with this three-ingredient stir fry ...

stir in the oyster sauce and a little more soy sauce and sesame oil, if desired. Garnish with spring onions. Cover with a lid to keep it warm while you finish the stir-fry. In a large frying pan ...