Marinate Chicken Chunks:
Slice chicken into bite-sized chunks. Marinate with cornstarch, soy sauce, sesame oil, sugar (or honey), and rice apple vinegar for at least 30 minutes.Sear Aromatic Chicken:
In a wok over medium-high heat, warm the oil. Fry smashed garlic until aromatic, then toss in the marinated chicken and sear for roughly 2 minutes.Stir-Fry Zucchini:
Take the chicken out of the wok. Put in sliced zucchini and stir-fry for 5 minutes until softened.Combine with Oyster Sauce:
Return chicken to the wok with zucchini. Mix in oyster sauce and pepper if using, and stir-fry another 2-3 minutes until everything is cooked through.Serve Over Rice:
Present hot atop rice or noodles.