Place thinly sliced beef into a large mixing bowl. Add light soy sauce, cornflour and sesame oil. Mix thoroughly and set aside for later use.
In a separate mixing bowl, whisk together beef stock, Chinese cooking wine, ginger and garlic paste, curry powder, dark soy sauce, sugar, turmeric, Chinese 5 spice and white pepper until evenly distributed.
Heat a large pan or pot on a medium to high heat and add a tablespoon of oil. Add diced onions to the pan, continuing to stir-fry for 2 minutes then add the bell peppers and stir fry for a further 1 minute or until softened.
Add diced beef and stir fry for 1 to 2 minutes or until the outside has browned.
Add the beef stock mixture to the pan, mix and add salt to taste. Then add the cornflour slurry and mix it into the sauce.
Bring the mixture to a boil and allow the mixture to simmer for 5 minutes on a high heat or until the sauce has thickened. Serve with rice or noodles, garnish with spring onions and enjoy!
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Notes
What Curry Powder Should I Use?
If you don't like heat, then I recommend that you use a mild curry powder. If you like heat then you can opt for a medium to hot curry powder.
Want More Heat?
You can amp up the heat levels in this dish by adding a couple diced fresh chillies or hot chilli powder (maybe even both). I would say the recipe as it is, has a mild to medium heat level and that's because I used a hot curry powder.
Another Quick Tip
Prep all your ingredients including the vegetables and beef into slices before starting this recipe. That's what makes this recipe super quick to make as you don't need to stop and start slicing every few minutes.