To ensure the best chile flavor, I recommend toasting whole dried chiles and grinding them in a mini-chopper or spice-dedicated coffee grinder, all of which takes only ten (very well-spent) minutes.
Select dried chiles that are moist and pliant, like dried fruit.
Count on trimming one-half to a full pound of waste from your chuck roast, so start with a four-pound roast to end up with three to three-and-a-half pounds of beef cubes.
For hotter chili, boost the heat with a pinch of cayenne, a dash of hot pepper sauce, or crumbled pequin chiles near the end of cooking.
Serve the chili with any of the following side dishes: corn bread or chips, corn tortillas, rice, biscuits, or just plain crackers, and top with any of the following garnishes: chopped fresh cilantro leaves, minced white onion, diced avocado, shredded cheddar or jack cheese, or sour cream.