Spicy chicken soup

When I first started working in Johannesburg in 2008, there was a Nando's outlet in our building which was incredibly popular over lunchtime. In winter, they used to offer soups, including an incredible spicy chicken soup which I found addictive. I had it 3 or 4 times a week.

I have never found an exact recipe for it, but this one comes fairly close - found it on Allrecipes and copying it below in case that link disappears. I usually don't follow this recipe super closely - too many cans where fresh ingredients would do, and I would not add a can of undrained beans to soup. But it gives a nice framework to do work from.

Ingredients

2 quarts water
8 skinless, boneless chicken breast halves
1/2 teaspoon salt
1 teaspoon ground black pepper
1 teaspoon garlic powder
2 tablespoons dried parsley
1 tablespoon onion powder
5 cubes chicken bouillon
3 tablespoons olive oil
1 onion, chopped
3 cloves garlic, chopped
1 (16 ounce) jar chunky salsa
2 (14.5 ounce) cans peeled and diced tomatoes
1 (14.5 ounce) can whole peeled tomatoes
1 (10.75 ounce) can condensed tomato soup
3 tablespoons chili powder
1 (15 ounce) can whole kernel corn, drained
2 (16 ounce) cans chili beans, undrained
1 (8 ounce) container sour cream

Method
In a large pot over medium heat, combine water, chicken, salt, pepper, garlic powder, parsley, onion powder and bouillon cubes. Bring to a boil, then reduce heat and simmer 1 hour, or until chicken juices run clear. Remove chicken, reserve broth. Shred chicken.

In a large pot over medium heat, cook onion and garlic in olive oil until slightly browned. Stir in salsa, diced tomatoes, whole tomatoes, tomato soup, chili powder, corn, chili beans, sour cream, shredded chicken and 5 cups broth. Simmer 30 minutes