In a large bowl, mix honey, Sriracha, soy sauce, sesame oil, minced garlic, and grated ginger together to create the marinade.
Add the diced chicken thighs to the marinade, ensuring they are well coated. Cover and marinate for at least 30 minutes in the refrigerator (or up to 2 hours for enhanced flavor).
In a large skillet or wok, heat a tablespoon of oil over medium-high heat. Once hot, add the marinated chicken (reserve the marinade for later) and stir-fry until browned and cooked through, about 5-7 minutes.
Remove the chicken from the skillet and set aside. In the same skillet, add the broccoli florets and cook for 3-4 minutes until tender-crisp.
While the broccoli is cooking, mix cornstarch with water in a small bowl to create a slurry.
Return the cooked chicken to the skillet with the broccoli, pour the reserved marinade over the mixture, and let it simmer for 2-3 minutes.
Add the cornstarch slurry to the skillet, stirring continuously until the sauce thickens. Season with salt and pepper to taste.
Remove from heat and serve hot, garnished with sesame seeds and chopped green onions.
Notes
Serve over steamed rice or quinoa for a complete meal.