Pat the chicken dry and toss with cornstarch, salt, and pepper. This is the secret to a crisp outside—no deep-fry needed.
Heat a tablespoon of sesame oil in a skillet over medium-high heat. Add the chicken in a single layer; don’t crowd the pan. Cook until golden and cooked through, about 5–7 minutes. Remove and set aside.
In the same pan, add a touch more oil if needed. Sauté garlic and ginger until fragrant, about 30 seconds. Don’t burn them or your dish gets bitter real fast.
Stir in gochujang, soy sauce, honey, and rice vinegar. Simmer gently until the glaze thickens to a glossy consistency, 2–3 minutes.
Return the chicken to the pan. Toss to coat evenly with the glaze. Heat through for another minute so the flavors marry and the glaze sticks.
Garnish with sesame seeds and green onions. Serve hot and watch the smile appear as the spice hits just right.