Creating Chicken Taco Soup is simple. Follow these steps closely:

1. Heat Oil: In a large pot, heat the olive oil over medium heat.
2. Sauté Onions and Garlic: Add the chopped onion and minced garlic to the pot. Sauté until the onion is translucent.
3. Brown the Chicken: Place the chicken breasts in the pot. Cook for about 5 minutes on each side until browned.
4. Add Liquids: Pour in the chicken broth, and then add the black beans, corn, and diced tomatoes.
5. Season: Sprinkle the taco seasoning and cumin over the mixture. Stir well to combine all ingredients.
6. Simmer: Bring the soup to a gentle boil. Then reduce the heat and let it simmer for 20-25 minutes.
7. Shred the Chicken: After simmering, remove the chicken breasts. Shred the chicken using two forks and return it to the pot.
8. Taste and Adjust: Season with salt and pepper according to your preference. Stir well.
9. Serve: Ladle the soup into bowls, and add your choice of toppings.

This straightforward process leads to a deliciously rich Chicken Taco Soup with minimal fuss.