Make the Mole Coloradito. On an ungreased griddle or heavy skillet heated over medium, toast the chiles a few at a time: open chiles flat, lay on the hot surface, press flat for a few seconds with a metal spatula (until they start to crackle, even send up a faint wisp of smoke), then flip and press down to toast the other side. In a medium-size bowl, cover the chiles with hot water and let rehydrate 30 minutes, stirring frequently to ensure even soaking. Drain and discard the water.
While the chiles are soaking, lay a piece of foil over part of your hot griddle or skillet and lay the tomatoes on it; on the uncovered part, place the garlic. Roast, turning everything occasionally, until blackened in spots and soft, 10 to 15 minutes. Cool slightly, then peel off the tomato and garlic skins. On the hot surface, toast the sesame seeds for a minute or so (they’ll pop around), then scrape them into a blender along with the tomatoes and garlic. Add the chiles, cinnamon, oregano, pepper, chocolate and 1 1/2 cups of the broth. Blend to a smooth puree, then press through a medium-mesh strainer into a bowl.
Heat the oil or lard in a heavy, medium-size (2- to 3-quart) saucepan over medium-high. When hot enough to make a drop of the puree sizzle fiercely, add the puree all at once and stir for several minutes as it sears and thickens. Stir in another 1 1/2 cups of the broth, partially cover and simmer for about 1 hour, stirring occasionally. Taste and season highly with the salt, usually about 1 1/2 teaspoons, and the sugar.
Turn on the oven to 350 degrees. Spray or brush with oil on one side of the tortillas then stack them up on a baking sheet and slide into the oven for just long enough to soften, about 3 to 4 minutes.
In a medium skillet set over medium-low, add the chicken (or one of its stand ins) and ladle in some of the sauce, about 1/2 cup. Lay out the warm tortillas on a counter, top them each with a portion of meat, roll them up and place them on a plate, seam side down. To serve the enchiladas, spoon a generous amount of sauce over the tortillas.
Garnish the enchiladas with the topping(s) of your choice: crema, white onion, and cilantro or parsley leaves would be nice here.