Season the chicken: Pat the chicken dry. Season with salt, pepper, and garlic powder on both sides.
Dry chicken browns better and keeps the skin crisp.
Brown the chicken: Heat olive oil in a large skillet or Dutch oven over medium-high heat. Place chicken skin-side down and sear 5–7 minutes until golden, then flip and sear 3–4 minutes. Transfer to a plate.
Don’t cook through yet; just build color and flavor.
Sauté the aromatics: Reduce heat to medium. If the pan is dry, add a splash of oil. Cook onion with a pinch of salt for 2–3 minutes until softened.
Stir in garlic for 30 seconds until fragrant.
Add the veggies: Add bell peppers and mushrooms. Cook 5–6 minutes, stirring occasionally, until they release moisture and begin to brown.
Deglaze: Pour in white wine (or broth), scraping up browned bits from the bottom. Let it simmer 2 minutes to reduce slightly. This step builds rich flavor.
Build the sauce: Stir in crushed tomatoes, chicken broth, oregano, basil, red pepper flakes, and the bay leaf.
Bring to a gentle simmer.
Simmer the chicken: Nestle the chicken back into the pan, skin-side up. Reduce heat to low, cover, and simmer 20–25 minutes, or until the chicken is tender and reaches 165°F internally.
Finish with briny punch: Stir in olives, capers, and parsley. Simmer uncovered 5 minutes to thicken slightly.
Taste and adjust salt and pepper.
Serve: Remove the bay leaf. Garnish with extra parsley and fresh basil if you like. Spoon the sauce over the chicken and enjoy.