This should be done 1 day in advance.
Remove the seeds and stems from all of the chiles. Heat some lard or oil and quickly fry the chiles on both sides, taking care not to burn them. Put the chiles into a bowl, cover with water, and leave to stand for a few hours.
In a blender, puree the chiles with a few tablespoons of water until smooth. Place the chili puree in a saucepan and cook over a medium flame for 10 minutes. Set aside.
In a saute pan over medium heat, add the coriander seeds, sesame seeds, cinnamon, and cloves and cook until their aroma is released. Transfer to a spice grinder and mix together. Add the garlic cloves and grind. Set aside.
Melt 3 tablespoons of lard in the same saute pan and fry the raisins briefly. In the same pan, fry the almonds and peanuts until browned. Transfer the raisins, nuts, and ground spices to a blender and puree together. They should form a smooth paste and may need a couple of tablespoons of chicken broth to blend effectively.
Add the blended mixture to the chile sauce and cook over a flame for about 5 minutes, stirring constantly. Break the Mexican chocolate into pieces and add it to the mixture. Continue cooking the mole for a further 15 minutes. Add the sugar and broth, and continue cooking the mole for around 45 minutes. Add salt and pepper, if necessary, and if desired some extra chocolate, to taste.
Preheat the oven to 350 degrees F.
Season the turkey breasts with salt and pepper. Heat the oil in a large, heavy-bottomed frying pan and sear the breasts skin side down first. Once the turkey is crisp and golden on both sides, remove from heat and place for 15 minutes in the oven to cook the meat through.
Slice the turkey and pour over the mole sauce. Garnish with sliced onions, radish, sesame seeds, and some sprigs of cilantro.