Heat the olive oil in a large Dutch oven over medium heat. Add the chopped onion and sauté until soft, about 4 minutes. Add the garlic, ginger, and turmeric. Cook, stirring, until fragrant, about 2 minutes.
Add the chicken pieces skin-side down and sear. When the skin is golden brown, after 3 to 5 minutes, flip and repeat on the other side.