Steps
1. Season the chicken thigh with salt and pepper.
2. Heat olive oil in a skillet over medium heat. Brown the chicken thigh skin-side down until golden, about 5 minutes. Flip and brown the other side for 3 minutes. Remove and set aside.
3. In the same skillet, add the sliced onion and garlic. Cook until softened and caramelized, about 5-7 minutes.
4. Pour in the red wine and chicken broth, scraping the bottom to loosen browned bits.
5. Add thyme and return the chicken to the skillet, skin-side up.
6. Reduce heat to low, cover, and simmer for 25-30 minutes until chicken is cooked through and tender.
7. Remove thyme sprig and serve the braised chicken with the sauce spooned over the top.