Clean and trim the chicken, then marinate with all marinade ingredients for at least 3 hours.
Mix the batter ingredients, coat the chicken evenly, and let it rest for 5 minutes.
Fry at 350°F for 8–10 minutes, or until the chicken reaches an internal temperature of 165°F.
While the chicken cooks, melt the butter and oil over low heat. Sauté the garlic until fragrant, then stir in the soy sauce, honey, brown sugar, red pepper flakes, and MSG (if using). Simmer until the sauce is glossy.
Drizzle the sauce over the crispy chicken (or toss to coat) and serve with steamed rice and veggies of choice.
