These boneless chicken thighs are marinated in a sweet and savory teriyaki sauce that is both flavorful and delicious. The chicken is first seasoned with salt and pepper, then marinated in the teriyaki sauce for at least an hour. The chicken is then grilled or baked until cooked through, and the remaining teriyaki sauce is brushed on top. This dish pairs well with a variety of sides such as stir-fried vegetables or fried rice.