Toss the chicken pieces with cornstarch, salt, and pepper until coated.
Heat oil in a large skillet over medium-high heat. Fry the chicken pieces until golden and crispy on all sides, about 4–6 minutes total.
Remove the chicken and set aside. In the same pan, reduce the heat to medium and add a splash more oil if needed.
Add garlic and sauté for about 30 seconds—just until fragrant, not burnt (watch it like a hawk).
Whisk in honey, soy sauce, rice vinegar, and sesame oil. Let the sauce bubble for 1–2 minutes until slightly thickened.
Toss the crispy chicken back into the pan and coat in the sauce until everything is glossy and sticky.
Serve hot, garnished with green onions and sesame seeds if you’re feeling fancy.