In a small mixing bowl, whisk together the oyster sauce, granulated sugar, sesame oil, soy sauce, chicken broth, corn starch, minced ginger, and rice vinegar. This method allows all the flavors to meld together beautifully. Set this flavorful concoction aside for later.

Next, bring a pot of water to a boil. Add the chow mein noodles and cook them according to the package instructions. This usually takes around 3-4 minutes. Once they're tender, drain them and rinse with cold water to stop the cooking process. It’s crucial to prevent them from becoming mushy! Set those noodles aside and let them chill for a moment.

Now, heat a large wok or skillet over medium heat. Add your oil and wait for it to shimmer, which means it’s hot enough. Cut your chicken into bite-sized pieces and add it to the pan. Cook for about 5 to 7 minutes until the chicken turns golden brown and no longer pink in the center. This step brings out the chicken's flavor and gives that delightful texture. Once done, transfer the chicken to a plate and cover it to keep it warm.

In the same wok, throw in the shredded cabbage and sliced carrots. Don’t forget the minced garlic! Stir-fry these for about 3 to 5 minutes until the cabbage becomes slightly translucent and the carrots soften. The aroma from the garlic and vegetables is invigorating, I must say!

Return the cooked chicken to the wok along with the chow mein noodles. Pour the prepared sauce over everything, ensuring it coats the ingredients evenly. Toss everything together for another 2 minutes. This helps each component absorb the garlicky, savory flavors, making every bite something to savor.

Once everything is heated through, and the sauce thickens slightly, it's time to plate. Garnish your Chow Mein with chopped green onions on top. Serve it hot from the pan and watch it disappear in seconds!