Juicy marinated chicken thighs roasted with bell peppers, red onion, and caramelized pineapple, finished with a sticky sweet-and-salty glaze. One-pan, easy cleanup, tropical flavor.
Whisk soy sauce, pineapple juice, brown sugar, rice vinegar, garlic, ginger, sesame oil, and sriracha. Reserve 3 tablespoons of the marinade for glazing. Pour remaining marinade over chicken and refrigerate 15 minutes to 2 hours.
Preheat oven to 425°F (220°C). Toss peppers and onion with olive oil, salt, and pepper. Arrange vegetables and pineapple on a rimmed sheet pan.
Place marinated chicken on the sheet pan among the vegetables and pineapple. Roast 18–25 minutes until chicken reaches 165°F (74°C) and pineapple is caramelized. Stir vegetables halfway through cooking.
Simmer the reserved marinade in a small saucepan; add cornstarch slurry if using and cook until glossy. Brush glaze over chicken, return to oven 2–3 minutes to set. Garnish and rest 5 minutes before serving.
Notes
Thighs stay juicier than breasts; adjust cook time if using breasts.
If you prefer a thicker glaze, use the cornstarch slurry and simmer until glossy.
To get more char, broil for 1–2 minutes at the end, watching closely.
Marinate longer for deeper flavor, but avoid overnight due to pineapple acidity.