Mix all the required ingredients above for chow mein sauce in a small bowl (sorry I forgot to take picture... imagine a brown-looking thingy mixture of everything)

Heat water in pot, when it’s boiling, put noodle in. Cook noodle for 3-4 mins. When cooked, put on colander and add cold water to stop it to further cook. Leave it for now.

Heat oil on pan in high heat (preferably wok), add chicken and cook until every part is white (4-5 mins). Lower the heat to medium, put vegetables in, and cook it for 3 mins.