Prepare your ingredients by chopping the onions and mincing the garlic.

In a large pot over medium heat, cook chicken breasts covered with water or broth for about 20-25 minutes until fully cooked.

Remove chicken from the pot and shred using two forks.

In the same pot, sauté chopped onions and minced garlic in oil until translucent (about 5 minutes).

Add chopped chiles and chicken broth; bring to a simmer.

Return shredded chicken to the pot and simmer for another 15-20 minutes.

Serve hot with toppings like cabbage, radishes, avocado slices, and lime juice.