In a large Dutch oven, warm oil on low/med. heat. Chop chicken into chunks and add to oil,
cooking 6 to 8 minutes. Add all remaining ingredients, except vinegar. Cook on low/medium heat, covered, stirring every 30 minutes, for 2 1/2 to 3 hours. In last 30 minutes, add vinegar. Serve over white rice or linguine pasta.