Great Northern Bean Soup - Click 'N Cook

Ingredients

• 2 cups great northern beans, dry
• 6 cups water
• 2 tablespoons vegetable oil
• 1/2 cup onion, chopped
• 1/2 pound boneless chicken thighs, skin removed, cubed
• 4 ounces ham, chopped (optional)
• 8 cups water
• 1 cup tomatoes, diced
• 1 tablespoon distilled white vinegar