One of the best chili recipes I have ever tasted.
Unlike a traditional beef-based tomato chili, white chili relies on a lighter poultry broth and a dairy-thickened base that demands careful temperature control. The most common error in making this dish is boiling the dairy. Stirring sour cream and Monterey Jack cheese directly into a rolling boil causes the milk solids to break and curdle, resulting in a grainy texture.
To prevent separation, lower the heat to a gentle simmer before incorporating dairy components, or turn off the heat entirely and rely on residual warmth to melt the cheese. When baking the chicken breasts at 350 degrees Fahrenheit, pull them from the oven precisely when the internal temperature reaches 165 degrees Fahrenheit to avoid dry, stringy meat.
Batch preparation requires attention to storage behavior. Because this soup contains dairy, cool the pot rapidly in an ice-water bath before transferring it to airtight containers. Consume refrigerated portions within four days. Freezing is possible, but freeze the base without the sour cream and cheese garnish, adding fresh dairy upon reheating.