These sticky-sweet baked teriyaki chicken thighs are marinated in savory teriyaki sauce, roasted until tender, then broiled until glossy and caramelized. Ready in about 30 minutes, they make an easy weeknight dinner served with rice and vegetables.
Place the chicken in a large bowl with ½ cup of the teriyaki sauce. Toss until well coated and set aside to marinate for about 10 minutes while the oven preheats.
Preheat the oven to 400°F, positioning one rack in the center and another 4–6 inches below the broiler. Line a rimmed baking sheet with foil, lightly coat it with nonstick cooking spray, and set it aside.
Arrange the marinated chicken in a single layer on the prepared baking sheet, with the deboned side of the thighs facing up for the best presentation. Pour any marinade remaining in the bowl over the chicken. Bake on the center rack for 15 minutes.
Remove the pan from the oven and preheat the broiler to its highest setting. Flip the chicken and spoon any sauce from the pan over the top. Move the baking sheet to the upper rack directly beneath the broiler. Broil for 4–5 minutes, rotating the pan halfway through, until the chicken is golden and caramelized and reaches an internal temperature of 165°F.
Drizzle the chicken with the reserved teriyaki sauce and scatter the sliced green onions over the top. Serve with cooked rice and vegetables, or add the chicken to a teriyaki bowl with your favorite toppings.