Recipe Source: Slow Cooker Recipes
1 fryer chicken, or 4 to 6 breasts
1/2 cup tomato paste
1/4 cup vinegar
1 tbsp. brown sugar
Salt and pepper to taste
Place chicken in slow-cooker. Mix all other ingredients and pour over chicken. Cook over low for at least 8 hours. Serve over rice, pasta, or as sandwiches.