The blend of chili powders in this recipe and their proportions can be widely varied according to your own taste and how spicy you like your foods. The long cooking melds the flavors. If you make the chili a day ahead, cook it for two hours, then refrigerate. Reheating it before serving will complete the cooking. Serve the chili with cooked pinto, pink or kidney beans, and bowls of chopped onion and grated Cheddar cheese. Allow your guests to choose their own proportions of each type of bean to suit their own taste. Purists add only a few beans, always on top of the chili, never mixed in.