Ingredients:

500g stir fry beef strips
2 tbsp balsamic vinegar
2 tbsp dark soy sauce
2 tbsp Worcestershire sauce
small bunch spring onions, sliced on the diagonal
200g roasted peppers

Method:

1. Marinate the beef: Put the beef in a medium non-metallic bowl and cover with the vinegar, soy and Worcestershire sauce. Leave to marinate for 20 minutes, or if you have the time, overnight.

2. Stir fry: Heat a small dry wok until it’s very hot. Tip in the beef, marinade and spring onions, stir fry for 2 minutes. Add the roasted peppers, then stir fry for a further 2 minutes. Divide the stir fry between shallow bowls and serve with some boiled rice.