Start by seasoning the chicken breasts with a pinch of salt and pepper, then cook them in a large pot with a splash of olive oil over medium heat until they are golden brown and cooked through, about 8-10 minutes. Remove the chicken and let it rest for a few minutes before shredding it into bite-sized pieces.
1 lb boneless, skinless chicken breasts
In the same pot, add a little more olive oil if needed and sauté the chopped onion until soft and translucent, about 5 minutes. The onion should become fragrant and slightly caramelized.
1 lb boneless, skinless chicken breasts
Add the minced garlic to the pot and cook for another 30 seconds until fragrant, stirring constantly to prevent burning.
1 lb boneless, skinless chicken breasts
Pour in the chicken broth and bring the mixture to a gentle simmer. Stir in the cumin, chili powder, and oregano, allowing the flavors to meld for about 5 minutes.
1 lb boneless, skinless chicken breasts
Add the drained white beans and shredded chicken into the broth. Stir everything together and let it simmer uncovered for another 10-15 minutes, until the chili has thickened slightly and the flavors are well combined.
1 lb boneless, skinless chicken breasts
Taste the chili and adjust seasoning with salt and pepper as needed. If you like it creamier, stir in the sour cream until fully incorporated and smooth.
1 lb boneless, skinless chicken breasts
Once the chili is hot and the flavors are balanced, remove it from heat. Serve the white chicken chili in bowls, garnished with fresh herbs or a dollop of sour cream if desired.