1 chilli, de-seeded, finely chopped
3 cloves garlic, finely chopped
100驳/3陆辞锄 oyster mushrooms
200g/7oz baby spinach leaves
pinch dried chilli flakes
1陆 tbsp oyster sauce
salt and freshly ground black pepper
1 tsp groundnut oil
2 tbsp groundnut oil
dash Chinese black rice vinegar or balsamic vinegar
1 tsp light soy sauce
dash light soy sauce
pinch sugar
350g/12oz beef fillet
1 tbsp Shaoxing rice wine or dry sherry