The recipe is designed for a 3.5 L. CrockPot (CP).
First fry the chicken breast in hot oil in a pan and place in the CP. Sweat the chopped onion in the remaining oil, briefly stir in the garlic and spread the onion mixture over the chicken. Add the remaining ingredients (except for the sour cream, cheese and taco chips) and mix everything well. Cover.
Braising time: approx. 5 to 6 hours on medium level. Season to taste.
Arrange the soup with sour cream, grated cheese and taco chips and serve immediately.