Combine 1 tablespoon of cornstarch with a few tablespoons of chicken broth in a bowl until smooth. Whisk in the remaining chicken broth, low-sodium soy sauce, honey, toasted sesame oil, and sriracha/red pepper flakes. Set the sauce aside.
In a separate shallow bowl, mix ¼ cup cornstarch with ½ teaspoon garlic powder and ¼ teaspoon ground ginger for the chicken coating.
Heat 2-3 tablespoons of olive oil in a large skillet or wok over medium-high heat. Season the 1-inch chicken pieces with salt and pepper, then toss them in the cornstarch mixture until lightly coated. Cook the chicken in batches for 3-5 minutes, turning until golden brown and cooked through. Remove the chicken and set aside.
Add the minced garlic to the same skillet and cook for just 1 minute, stirring constantly, until fragrant. Pour in the prepared honey garlic sauce and stir it well with the garlic. Bring the sauce to a gentle simmer over medium heat.
Return the cooked chicken to the skillet with the simmering sauce. Stir everything together and continue cooking for 2-5 minutes, allowing the sauce to thicken to a lovely, glossy consistency that coats the chicken beautifully. Taste and adjust seasoning with salt and pepper if needed.
Garnish with a sprinkle of sesame seeds and fresh sliced green onions. Serve over steamed brown rice or your favorite steamed vegetables.