Try this Chili Blanco recipe, or contribute your own.
Using canned cannellini beans instead of dried Great Northern beans will cut the initial two-hour simmering stage down to twenty minutes, though the starch release from overnight-soaked dried beans creates a naturally thicker body without added thickeners. Heavy-bottomed cast iron or enameled Dutch ovens distribute heat evenly, preventing scorching during the extended simmering phases when bean starches settle against the base. Sweat the second portion of onions in a separate skillet over medium-low heat until translucent, about eight minutes, before introducing the green chiles and canned tomatoes to drive off raw sulfur compounds. Maintain a gentle bubble rather than a rolling boil during the final hour with the cooked chicken to keep the meat tender rather than stringy.
Heavy vessels are non-negotiable for dishes containing significant quantities of legumes and chicken broth. Thin stainless steel pots create hot spots, causing starches from the Great Northern beans to burn long before the interior softens fully. Monitor the liquid level continuously across the two-hour bean softening window, replenishing with warm broth to prevent concentrated salts from seizing at the perimeter.