Preparation Pat chicken dry and sprinkle on all sides with 1 1/4 teaspoons salt and pepper. Heat oil in a deep 12-inch heavy skillet over moderately high heat until hot but not smoking, then brown chicken in 2 batches, turning over once, about 10 minutes per batch. Transfer chicken to a plate. Reduce heat to moderate and add onion, bell pepper, and garlic to skillet. Cook, stirring occasionally and scraping up any brown bits, until onion and garlic are golden, 8 to 10 minutes. Add wine and simmer, scraping up brown bits, until liquid is reduced by half, 1 to 2 minutes. Add tomatoes with their juice and simmer, breaking up tomatoes with a wooden spoon, 5 minutes. Add chicken stock and nestle chicken pieces in sauce. Simmer, loosely covered with foil, until chicken is cooked through, 35 to 45 minutes. Season with remaining 1/2 teaspoon salt. For a thicker sauce, transfer cooked chicken to a platter and keep warm, covered, then boil sauce until it reaches desired consistency.
Preparation Pat chicken dry and sprinkle on all sides with 1 1/4 teaspoons salt and pepper. Heat oil in a deep 12-inch heavy skillet over moderately high heat until hot but not smoking, then brown chicken in 2 batches, turning over once, about 10 minutes per batch. Transfer chicken to a plate. Reduce heat to moderate and add onion, bell pepper, and garlic to skillet. Cook, stirring occasionally and scraping up any brown bits, until onion and garlic are golden, 8 to 10 minutes. Add wine and simmer, scraping up brown bits, until liquid is reduced by half, 1 to 2 minutes. Add tomatoes with their juice and simmer, breaking up tomatoes with a wooden spoon, 5 minutes. Add chicken stock and nestle chicken pieces in sauce. Simmer, loosely covered with foil, until chicken is cooked through, 35 to 45 minutes. Season with remaining 1/2 teaspoon salt. For a thicker sauce, transfer cooked chicken to a platter and keep warm, covered, then boil sauce until it reaches desired consistency.