In a medium bowl, toss the chicken thighs with cornstarch, ensuring each piece is well-coated. Set aside.
1.5 pounds boneless skinless chicken thighs, cut into thin strips*, 2 Tablespoons cornstarch
In a small bowl or liquid measuring cup, whisk together the soy sauce, honey, rice vinegar, hoisin sauce, ground ginger, chili flakes, and cornstarch. Set aside.
1/4 cup soy sauce, 2 Tablespoons EACH rice vinegar & hoisin, 1 teaspoon ground ginger, 1-4 - 1/2 teaspoon red pepper flakes, 2 teaspoons cornstarch, 3 Tablespoons honey
Heat about half of the sesame oil in a wok or large skillet over medium-high heat. Working in 2-3 batches, add the chicken strips. Let the chicken cook undisturbed for a few minutes to allow it to brown. Turn and cook until browned and cooked through, about 5-7 minutes per batch. Remove each batch of chicken from the wok and set aside. Add more sesame oil between batches if needed.
3 Tablespoons toasted sesame oil
Reduce the heat to low. Add the remaining sesame oil to the wok. Add the garlic and the whites of the green onions. Sauté for 1-2 minutes until fragrant.
8 cloves garlic, finely minced, 5-6 scallions, whites & greens separated
Add the frozen green beans to the wok. Sauté for 6-8 minutes or until they are tender. Increase the heat to medium if necessary.
1 pound frozen green beans
Return the cooked chicken to the wok. Pour the prepared sauce over the chicken and green beans. Stir well to coat everything evenly. Cook for another 2-3 minutes until the sauce has thickened slightly. Garnish with the greens of the green onions. Add a splash or water or chicken broth to loosen the sauce if it thickens too much.