Cook the onions, nuts, seeds, and spices. Heat 1 tablespoon olive oil in a large heavy-bottomed saucepan over medium-high heat. Add the onions and cook for 10-12 minutes, stirring often, until softened, golden, and beginning to caramelize. Reduce the heat to medium and add the sesame seeds, almonds, garlic, cumin seeds, coriander seeds, star anise, and cloves. Cook for 1-2 minutes, stirring continuously, until fragrant.
1 tablespoon olive oil, 2 medium yellow onions, ¼ cup sesame seeds, ⅓ cup sliced almonds, 8 cloves garlic, 4 teaspoons cumin seeds, 4 teaspoons coriander seeds, 1 teaspoon whole anise seeds, 4 whole cloves
Add the dried chiles. Stir in the pasilla, ancho, and chipotle chiles. Cook for 2-3 minutes, stirring frequently, just until the chiles begin to soften. Take care not to burn them.
5 ounces dried pasilla chiles, 1 ounce dried ancho chiles, 1 ounce dried chipotle chiles
Simmer the mole. Pour the reserved chicken cooking liquid into the saucepan. Add the cinnamon stick, bay leaves, raisins, marjoram, thyme, and oregano. Bring to a low boil, then reduce to a gentle simmer. Cover and cook for 30-35 minutes, or until the dried chiles are very soft.
1 cinnamon stick, 2 bay leaves, ½ cup raisins, 1 teaspoon dried marjoram, 1 teaspoon dried thyme, 2 teaspoons dried oregano
Add the tomato paste and chocolate. Stir in the tomato paste and cook for 1-2 minutes. Remove from the heat and add the chopped Mexican chocolate. Let sit for about 10 minutes, allowing the chocolate to melt and the mixture to cool slightly.
2 tablespoons tomato paste, 3.1 ounces dark Mexican chocolate
Blend until smooth. Remove and discard the bay leaves, but leave the cinnamon stick in the sauce. Working in batches as needed, carefully transfer the mixture to a high-powered blender and blend until completely smooth and velvety.
Finish the mole. Pour the blended mole back into the pot and warm gently over low heat. Season with salt and black pepper to taste. The finished sauce should be thick, smooth, and easily spoonable.
salt and black pepper
Serve. Leave the cooked chicken pieces whole or shred the meat, then spoon the warm mole generously over the chicken. Garnish with sesame seeds and cilantro, if desired.
sesame seeds, Chopped fresh cilantro