Take a bowl and add sesame oil, dark soy sauce, soy sauce, water, and sugar. Make sure to mix it properly.
After this, boil the noodles and after cooking, drain them and set them aside.
Place a large skillet on medium-high heat. Add vegetable oil, white portion of the green onion, garlic, and red chillie. You need to stir-fry it for 3 minutes at least.
Add noodles and sauce now and cook it until they are fully coated with the sauce. Set the temperature to high heat and then, add bean sprouts.
After this, add green onions and cook for 2 minutes until the onions are wilted.
Serve your Spicy Noodles with sliced green onions, and red chilies on top.