@Joan , Here's the recipe I promised you. I've made this times beyond count with numerous meat variations (different roasts, added pork, added cooked/drained hamburger, etc. just to get the meat quantity right). You can see all the annotations which, with the process below, have made this recipe mine. Clearly, you can dampen the heat by just going to your taste. Start from the original or do your own thing, but let me also say that only on the first try (maybe 10-12 years ago) did I make this according to recipe.
So some basics of "my" recipe. First of all, this is in the "Soups" chapter of the book, so the extra water isn't needed and I adjust liquids to get a chili density to my taste -- may add a couple of tbsps of corn meal if I remember for flavor and thickening. I usually use a beef roast (sirloin, rib roast, chuck roast) and cut into strips for the coating, sear quickly on my grill and then dice to 1/2-3/4" (bite size). There's merit to cooking veggies in the pan as described, but typically I'll just par-cook onions, jalapenos, etc. in the microwave (or leave them raw). As she shows, this is more of a Texas-type chili, but I like the addition of tomato and often use a can of Rotel w/ Green Chilies (or Habaneros) or chopped Romas. Also, I now use 2 cans of black beans. In lieu of her "chili paste", along with the anchos, I also add 3-4 Guajillos (love the flavor), and a little of whatever else I may have on hand (dried chipotles, chile de arbol, habanero, etc.). I may use a bit of the rehydating water, but only a tablespoon or so. Coriander is a "possible". Lime juice is a necessity. I add all this to a crock pot, start on high, then turn to low for 2 or more hours adding in the beans an hour or so before finishing.
Once I had a good-sized (1/3 lb) leftover hamburger and decided to wing it for a quick dinner based on this recipe. Diced the burger, added most of the other things and cooked on our stove top for an hour plus. Other than the ground chuck, it was not much different than the above.
One final thought. I've seen lots of people ask about ways to enjoy chili. One of my favorites is to use baked potato as a base with whatever fixins you like.