Prep the Chicken
Pat chicken thighs dry and season with salt and pepper.
Sear the Chicken
Heat oil in a large skillet over medium heat. Cook chicken 3–4 minutes per side, until browned and cooked through. Remove and set aside.
Make the Sauce
In the same pan, add garlic and ginger. Sauté for 1 minute. Add soy sauce, brown sugar, honey, vinegar, and sesame oil. Bring to a simmer.
Thicken the Sauce
Stir together cornstarch and water in a bowl. Add to the sauce and stir until thick and glossy.
Coat the Chicken
Return chicken to pan, spoon sauce over the top, and simmer for 3–4 minutes to glaze.
Serve & Garnish
Slice chicken, serve over rice, and garnish with sesame seeds and green onions.