Season the chicken with salt and pepper. In a large skillet, heat oil over medium high heat. Cook the chicken, skin side down, until the skin turns golden brown (about 4 minutes).
Combine the onion, garlic, thyme and rosemary in a 5 to 6-quart slow cooker and season with salt and pepper. Top with the chicken, skin side up. Scrape any juices from the pan on top of the chicken. In a small bowl, whisk together the wine, broth and flour until smooth and pour it over the chicken in the slow cooker. Cover and cook until the chicken is tender, about 3½ hours on HIGH or 7 hours on LOW.
Serve the chicken topped with sauce. Serve over rice, couscous, polenta or potatoes.
Notes
This recipe is gluten-free adaptable. Substitute gluten free flour or tapioca starch for the all purpose flour.
A delicious accompaniment to this dish is polenta. Prepare instant polenta as directed, substituting milk for half of the water and adding in 1 tablespoon of butter and a spoonful or two of cream cheese.
If you would prefer to cook this in the oven, brown the chicken in a Dutch oven, then add remaining ingredients plus 1 cup chicken broth. Cover and cook at 350 degrees F. until the chicken is cooked through and tender, about 40 minutes.