Prepare your sauce by mixing the sweet dark soy sauce, oyster sauce, thin soy sauce, vinegar, and sugar together. Set aside.
Prepare your rice noodles by blanching them in simmering water for a few seconds, as needed. Use your fingers to separate each noodle if they are stuck together.
Add a bit of oil to your wok and heat it to high heat. Add the garlic and saute until it’s almost golden brown. Then add the chicken and saute until it’s cooked through.
Push the garlic and chicken to the side of the wok. Add a little more oil and once it’s hot, crack an egg and scramble it in the middle of the wok.
Push everything to the side and add the blanched rice noodles and sauce you prepared earlier. Mix everything together and stir fry until there is not much liquid left in the wok.
Next add the Chinese broccoli to the noodles and cook until wilted. During this time, just let the noodles sit for a minute or so to get a nice char on them. Once done, take off the heat and serve immediately!