In a bowl, combine beef, 2 tbsp light soy sauce, 1 tbsp dark soy sauce, ginger juice, 1 tsp white pepper powder, 1 tbsp cornstarch and 1 tbsp vegetable oil.
Set aside until needed.
| To get ginger juice, blend 1 to 2 inch ginger and strain juice.
In a pan on high heat, heat 3 tbsp vegetable oil and sear beef slices for 2 minutes.
Remove from pan and set aside.
In the same pan on high heat, heat another 4 tbsp vegetable oil and stir-fry garlic and onions for 2 minutes until fragrant.
Add noodles, 4 tbsp light soy sauce, 1 Tbsp dark soy sauce, 2 Tbsp oyster sauce and 1 tsp sesame oil to the pan, stir-frying for 2 minutes.
| Be sure to constantly stir while frying the noodles or it will get burnt and lumpy.
In the same pan, toss in beef, bean sprouts and spring onions. Continue stir-frying another 2 minutes, until spring onions softens.
| Substitute beef slices for any seafood of your choice such as prawns and squid.
Toss in the bean sprouts and spring onions until they start to wilt.