In a small bowl, combine all ingredients for the sauce.
In a small pot, bring a pot of water to boil and cook rice noodles according to directions on the package.
Put a wok over high heat and add 2 tablespoons of vegetable oil to the wok. Once hot, add garlic and chicken to the wok. Working quickly, toss until chicken is mostly cooked through then add the gai lan and cook until softened and wilted, about 5-7 minutes.
Add eggs, incorporate, then drain the noodles and add to the wok.
Pour the sauce on top and toss until nicely coated. Let the noodles sit for 1-2 minutes to let it caramelize then toss and repeat, if desired.
Divide into bowls and enjoy.
Notes
If you can't find sweet soy sauce, you can substitute with 1/2 tablespoon of dark brown sugar. So you would use 5 tablespoons of regular soy sauce and 1/2 tablespoon of dark brown sugar ONLY IF you can't find sweet soy sauce.