7. After that, heat up vegetable oil.
8. Until it reaches around 350F. You can use a wooden chopstick to test if the oil is hot enough. When you see little bubbles around the chopstick, the oil is hot enough.
9. Slowly put onion and green onion into the hot oil. (Be careful it will overflow when you put onion, green onion, ginger and other spices into hot oil. I suggest turning off the fire or to very low heat when you add them.)
13. After, add the chopped chili peppers and let it cook for another 10 minutes.
14. Lastly, add salt, sugar and soy sauce. Keep stirring them until the salt and sugar is melted. Let it cook for another couple minutes after pouring soy sauce. (Be careful when pouring soy sauce, it may overflow. Turn the fire very low or off when you add soy sauce.)