Preparation
Step 1
To make the beef: Prepare the fillet of beef by hammering it with a meat cleaver, the side of a meat cleaver, the side of a Chinese cleaver or a rolling pin. Slice it thinly, and put the pieces into a bowl. Season the beef with the light soy sauce, oyster sauce, salt, black pepper, and sugar. Set aside.
Step 2
Heat a wok over high heat, and add one tablespoon of groundnut oil. Add the garlic and chilli, and toss quickly. Then, add the spinach leaves and toss so they warm for five seconds. Scatter them onto a large serving plate.
Step 3
Heat the wok over high heat, and add the remaining groundnut oil. Add the beef slices, and stir-fry for one to two minutes, adding a dash of Shaohsing rice wine. Season with a pinch of dried chilli flakes. To serve, lay the beef over a bed of the garlic-spinach leaves.
Step 4
To make the mushrooms: reheat the wok, add the oil, then add the oyster mushrooms and stir fry for one minute. Add a small splash of water to create some steam to help cook. Season with the black rice vinegar, and light soy sauce. Spoon the mixture over the beef, and serve.
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Ingredients
For the beef
340g beef fillet, pounded and thinly sliced
Dash light soy sauce
1 1/2 tbsp oyster sauce
Salt and freshly cracked black pepper
Pinch sugar
1 tbsp Shaohsing rice wine
Pinch dried chilli flakes
For the spinach
200g baby spinach leaves
2 tbsp groundnut oil, divided
3 cloves garlic, crushed and finely chopped
1 medium chilli, seeded and finely chopped
For the black vinegar oyster mushrooms
1 tsp groundnut oil
115g oyster mushrooms
Water, as needed
1 tbsp black rice vinegar (recommended: Chinkiang - can be found at speciality Asian markets)) or balsamic vinegar
1 tsp light soy sauce